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Ole Gunnar Dahlhaug

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Ole Gunnar Dahlhaug

Professor
Department of Energy and Process Engineering
Faculty of Engineering

ole.g.dahlhaug@ntnu.no
+4773598257 +4791897609 Vannkraftlaboratoriet, 3etg,rom33, Gløshaugen, Alfred Getz vei 4
About Publications Teaching Outreach

About

CV

 

  

Competencies

  • Energy
  • Engineering fluid mechanics
  • Hydropower
  • Turbine

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2025

  • Belsnes, Michael Martin; Dahlhaug, Ole Gunnar; Doujak, Eduard; Mayo-Garcia, Rafael; Köhler, Berit; Sciullo, Alessandro. (2025) Revamping hydropower research 24/09/2024 - 24/09/2024 Brussels, Belgium. IOP Publishing IOP Conference Series: Earth and Environmental Science (EES) (1442)
    Academic anthology/Conference proceedings
  • Belsnes, Michael Martin; Dahlhaug, Ole Gunnar; Doujak, Eduard; Mayo-Garcia, Rafael; Köhler, Berit; Sciullo, Alessandro. (2025) Preface for the "Revamping hydropower research” publication. IOP Conference Series: Earth and Environmental Science (EES)
    Editorial
  • Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2025) Methods to prevent or mitigate total dissolved gas supersaturation in the waterways downstream hydropower plants. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Kayastha, Atmaram; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2025) Experimental Approach to Evaluate Effectiveness of Vortex Generators on Francis Turbine Runner. Energies
    Academic article
  • Karna, Aaditya; Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2025) A review of condition monitoring in Francis turbines for predictive maintenance. Journal of Vibration and Control
    Academic literature review
  • Zhao, Zilong; Qian, Zhongdong; Dahlhaug, Ole Gunnar; Guo, Zhiwei. (2025) Effect of leakage flow on sediment erosion in guide vane region. International Journal of Mechanical Sciences
    Academic article

2024

  • Rijal, Mamata; Dahlhaug, Ole Gunnar. (2024) Study of Labyrinth Seals of Francis Turbines for Sediment-laden Hydropower.
    Briefs
  • Abregu, Jim; Dahlhaug, Ole Gunnar. (2024) Erosion on Pelton turbines.
    Briefs
  • Kayastha, Atmaram; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2024) A numerical study on the effect of spanwise installation of vortex generators on Francis runner blades. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2024) Ultrasonic degassing of TDG supersaturated, flowing water. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Abregu Ochoa, Jim Furcio; Scheuer, Jonas; Satyal, Sajan; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2024) Evaluation of the jet distortion by sediment erosion in the needle in the Pelton turbines. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Iliev, Igor; Dahlhaug, Ole Gunnar. (2024) Correlating Sediment Erosion in Rotary–Stationary Gaps of Francis Turbines with Complex Flow Patterns. Energies
    Academic article

2023

  • Kuhn, Wolf Ludwig; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther; Hihn, Jean-Yves. (2023) Evaluation of ultrasonic degasification as a tool to mitigate total dissolved gas supersaturation downstream hydropower plants. Doktoravhandlinger ved NTNU (2023:445)
    Doctoral dissertation
  • Kverno, Johannes Opedal; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2023) Calibration of strain gauges on a model runner blade combining numerical and experimental data. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2023) Evaluating natural degassing in a river to create a baseline for comparison to technical degassing methods. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Kverno, Johannes Opedal; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Iliev, Igor; Solemslie, Bjørn Winther. (2023) Flexible operation of Francis turbines. Doktoravhandlinger ved NTNU (2023:387)
    Doctoral dissertation
  • Kuhn, Wolf Ludwig; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther; Hihn, Jean-Yves. (2023) Evaluation of ultrasonic degasification as a tool to mitigate total dissolved gas supersaturation downstream hydropower plants. Doktoravhandlinger ved NTNU (2023:445)
    Doctoral dissertation
  • Kverno, Johannes Opedal; Vefring, Gaute Elde; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2023) Challenges with onboard strain measurements on a model Francis turbine runner. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Kayastha, Atmaram; Ghimire, Amul; Bijukchhe, Pawan Lal; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2023) Numerical investigation of model Francis turbine for performance enhancement with geometrical modification. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Wang, Hong; Ahmed, Osman; DeSomber, Kyle; Sasthav, Colin; Storli, Pål-Tore Selbo; Dahlhaug, Ole Gunnar. (2023) Adaptive Hybrid 1D Modeling for Digital Twin of Hydropower Systems. The International Association for Hydro-Environment Engineering and Research (IAHR)
    Academic chapter/article/Conference paper
  • Wang, Hong; Ou, Shiqi; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Skjelbred, Hans Ivar; Vilberg, Ingrid Kristine. (2023) Adaptively Learned Modeling for a Digital Twin of Hydropower Turbines with Application to a Pilot Testing System. Mathematics
    Academic article

2022

  • Gautam, Saroj; Chitrakar, Sailesh; Neopane, Hari Prasad; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2022) Numerical investigation of a Pelton turbine at several operating conditions. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2022) Development of simplified model for prediction of sediment induced erosion in Francis turbine’s sidewall gaps . IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2022) Application of hydro-abrasive erosion model from IEC 62364:2019 standard in Francis turbines. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Gautam, Saroj; Acharya, Nirmal; Chitrakar, Sailesh; Neopane, Hari Prasad; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) Sediment erosion in the labyrinths of Francis turbine: A numerical study. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Lazarevikj, Marija; Stojkovski, Filip; Markov, Zoran; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) Parameter based tool for Francis turbine guide vanes design using coupled MATLAB-ANSYS approach. Journal of Sustainable Development of Energy, Water and Environment Systems
    Academic article
  • Kverno, Johannes Opedal; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) High flexibility in Francis turbine operation and design philosophy: A review. IOP Conference Series: Earth and Environmental Science (EES)
    Academic literature review
  • Gautam, Saroj; Acharya, Nirmal; Lama, Ram; Chitrakar, Sailesh; Neopane, Hari Prasad; Zhu, Baoshan. (2022) Numerical and experimental investigation of erosive wear in Francis runner blade optimized for sediment laden hydropower projects in Nepal. Sustainable Energy Technologies and Assessments
    Academic article

2021

  • Dahlhaug, Ole Gunnar; Støren, Gine Kirkebøen. (2021) ldentifisering av sprekker i Francis turbiner.
    Briefs
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Sigurdsson, Bjarki; Tengs, Erik Os. (2021) Modal testing of the Francis-99 runner. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Stojkovski, Filip; Lazarevikj, Marija; Markov, Zoran; Iliev, Igor; Dahlhaug, Ole Gunnar. (2021) Constraints of Parametrically Defined Guide Vanes for a High-Head Francis Turbine. Energies
    Academic article
  • Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2021) Leakage Vortex Progression through a Guide Vane’s Clearance Gap and the Resulting Pressure Fluctuation in a Francis Turbine. Energies
    Academic article
  • Dahlhaug, Ole Gunnar; Jørgen Ranum, Krokstad. (2021) Vind- og vannkraften kan gjøre Norge 100 prosent fornybar. Adresseavisen
    Feature article
  • Acharya, Nirmal; Trivedi, Chirag; Gautam, Saroj; Dahlhaug, Ole Gunnar. (2021) Investigation of sediment erosion phenomenon for different blade angle distribution in Francis runner. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar; Lee, Young Ho; Zhongdong, Qian. (2021) Current research in hydraulic turbines against sediment erosion: International partnership and collaborations. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Dahlhaug, Ole Gunnar; Bakken, Tor Haakon; Hultgren, Liv Randi; Bergmann-Paulsen, Jonas. (2021) Norge må bygge ut mer vannkraft. Adresseavisen
    Feature article

2020

  • Vereide, Kaspar Vatland; Mo, Birger; Forseth, Torbjørn; Lia, Leif; Nysveen, Arne; Dahlhaug, Ole Gunnar. (2020) AlternaFuture. Norwegian Research Centre for Hydropower Technology TRONDHEIM
    Report
  • Agnalt, Einar; Solemslie, Bjørn Winther; Storli, Pål-Tore Selbo; Dahlhaug, Ole Gunnar. (2020) The Rotor-Stator Interaction Onboard a Low Specific speed Francis Turbine. International Journal of Fluid Machinery and Systems
    Academic article
  • Trivedi, Chirag; Iliev, Igor; Dahlhaug, Ole Gunnar; Zoran, Markov; Engstrom, Fredrik; Lysaker, Henning. (2020) Investigation of a Francis turbine during speed variation: Inception of cavitation. Renewable Energy
    Academic article
  • Iliev, Igor; Tengs, Erik Os; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2020) Optimization of Francis Turbines for Variable Speed Operation Using Surrogate Modeling Approach. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Støren, Gine Kirkebøen; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther. (2020) Signature Investigation of Typical Faults on Francis Turbines. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Volent, Eirik; Sagmo, Kristian Forfot; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2020) Experimental Study of Flow Structure in Converging–Diverging Axisymmetric Geometry. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Chitrakar, Sailesh; Solemslie, Bjørn Winther; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2020) Review on numerical techniques applied in impulse hydro turbines. Renewable Energy
    Academic literature review
  • Trivedi, Chirag; Iliev, Igor; Dahlhaug, Ole Gunnar. (2020) Numerical study of a Francis turbine over wide operating range: Some practical aspects of verification. Sustainability
    Academic article

2019

  • Agnalt, Einar; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo. (2019) Rotor-Stator Interaction in low-specific speed Francis Turbines. Doktoravhandlinger ved NTNU (2019:219)
    Doctoral dissertation
  • Iliev, Igor; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2019) Variable-speed operation and pressure pulsations in a Francis turbine and a pump-turbine. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Agnalt, Einar; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) Onboard measurements of pressure pulsations in a high head Francis model runner. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Solemslie, Bjørn Winther; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2019) Pressure Pulsations and Fatigue Loads in High Head Francis Turbines. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) An Experimental Investigation of the Hydroynamic Damping of Vibrating Hydrofoils. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2019) The numerical and experimental investigation of erosion induced leakage flow through guide vanes of Francis turbine . IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Agnalt, Einar; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) On the Rotor Stator Interaction Effects of Low Specific Speed Francis Turbines. International Journal of Rotating Machinery
    Academic article
  • Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2019) Signature analysis of characteristic frequencies in a Francis turbine. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Volent, Eirik; Dahlhaug, Ole Gunnar; Tengs, Erik Os. (2019) Study of flow structure in erosion prone complex geometries. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) A comprehensive review of verification and validation techniques applied to hydraulic turbines. International Journal of Fluid Machinery and Systems
    Academic literature review
  • Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2019) Development of a test rig for investigating the flow field around guide vanes of Francis turbines. Flow Measurement and Instrumentation
    Academic article
  • Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) Variable-speed operation of Francis turbines: A review of the perspectives and challenges. Renewable and Sustainable Energy Reviews
    Academic literature review
  • Trivedi, Chirag; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2019) Francis-99 Workshop 3: Fluid structure interaction. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Nordvik, Andreas; Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) Numerical prediction of hill charts of Francis turbines. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Acharya, Nirmal; Trivedi, Chirag; Wahl, Nina Marie; Gautam, S; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2019) Numerical study of sediment erosion in guide vanes of a high head Francis turbine. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Neopane, Hari Prasad; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2019) Role of Turbine Testing Lab for overcoming the challenges related to hydropower development in Nepal. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Østby, Petter Thorvald Krogh; Dahlhaug, Ole Gunnar. (2019) Damping Measurements on a Multi-Blade Cascade with Multiple Degrees of Freedom: A Francis-99 Test Case. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Østby, Petter Thorvald Krogh; Agnalt, Einar; Haugen, Bjørn; Billdal, Jan Tore; Dahlhaug, Ole Gunnar. (2019) Fluid structure interaction of Francis-99 turbine and experimental validation. Journal of Physics: Conference Series (JPCS)
    Academic article

2018

  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2018) Flow measurements around guide vanes of Francis turbine: A PIV approach. Renewable Energy
    Academic article
  • Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Experimental investigation of a Francis turbine during exigent ramping and transition into total load rejection. Journal of Hydraulic Engineering
    Academic article
  • Siemonsmeier, Marius; Baumanns, Philipp; van Bracht, Niklas; Schönefeld, Maik; Schönbauer, Andrea; Moser, Albert. (2018) Hydropower Providing Flexibility for a Renewable Energy System: Three European Energy Scenarios. HydroFlex
    Report
  • Chitrakar, Sailesh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2018) Numerical investigation of the effet of leakage flow through erosion-induced clearance gaps of guide vanes on the performance of Francis turbines. Engineering Applications of Computational Fluid Mechanics
    Academic article
  • Agnalt, Einar; Østby, Petter Thorvald Krogh; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2018) Experimental Study of a Low-Specific Speed Francis Model Runner during Resonance. Shock and Vibration
    Academic article
  • Bergan, Carl Werdelin; Solemslie, Bjørn Winther; Østby, Petter Thorvald Haug; Dahlhaug, Ole Gunnar. (2018) Hydrodynamic Damping of a Fluttering Hydrofoil in High-speed Flows. International Journal of Fluid Machinery and Systems
    Academic article
  • Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2018) Interaction between trailing edge wake and vortex rings in a Francis turbine at runaway condition: Compressible large eddy simulation. Physics of Fluids
    Academic article
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2018) A Reference Pelton Turbine - Three-Dimensional Flow Front Tracking Within a Rotating Pelton Bucket. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2018) Simplified hydrodynamic analysis on the general shape of the hill charts of Francis turbines using shroud-streamline modeling. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Ulvan, Vegard S.; Kverno, Johannes O.; Dahlhaug, Ole Gunnar. (2018) Pressure pulsations and hydraulic efficiency at Smeland power plant. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Sannes, Daniel B.; Iliev, Igor; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Pressure Pulsation in a High Head Francis Turbine Operating at Variable Speed. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Shrestha, K.P.; Chitrakar, Sailesh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2018) Performance Comparison of Optimized Designs of Francis Turbines Exposed to Sediment Erosion in various Operating Conditions. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Volent, Eirik; Dahlhaug, Ole Gunnar. (2018) Literature review relevant to particle erosion in complex geometries. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Trivedi, Chirag; Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2018) Investigation of the Unsteady Pressure Pulsations in the Prototype Francis Turbines -Part 1: Steady State Operating Conditions. Mechanical systems and signal processing
    Academic article
  • Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Experimental study of a Francis turbine under variable-speed and discharge conditions. Renewable Energy
    Academic article

2017

  • Trivedi, Chirag; Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2017) Investigation of the unsteady pressure pulsations in the prototype Francis turbines during load variation and startup. Journal of Renewable and Sustainable Energy
    Academic article
  • Dahlhaug, Ole Gunnar. (2017) Norsk vannkraft kan utnyttes bedre. Adresseavisen
    Feature article
  • Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2017) Experimental investigation of air injection in high head Francis turbines. International journal on hydropower and dams
    Academic article
  • Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2017) Particle Image Velocimetry Investigation of the Leakage Flow Through Clearance Gaps in Cambered Hydrofoils. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Østby, Petter Thorvald Haug; Billdal, Jan Tore; Haugen, Bjørn; Dahlhaug, Ole Gunnar. (2017) On the relation between friction losses and pressure pulsations caused by Rotor Stator interaction on the Francis-99 turbine. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2017) Effects of sediment erosion in guide vanes of Francis turbine. Wear
    Academic article
  • Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Francis-99 Workshop 2: transient operation of Francis turbines. Journal of Physics: Conference Series (JPCS)
    Editorial
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2017) Sediment erosion induced leakage flow from guide vane clearance gap in a low specific speed Francis turbine. Renewable Energy
    Academic article
  • Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2017) Numerical and experimental study of the leakage flow in guide vanes with different hydrofoils. Journal of Computational Design and Engineering
    Academic article
  • Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2017) Investigations of unsteady pressure loading in a Francis turbine during variable-speed operation. Renewable Energy
    Academic article
  • Gong, Ruzhi; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Blade passage modeling strategy for hydraulic turbine. International Journal of Fluid Machinery and Systems
    Academic article

2016

  • Dahlhaug, Ole Gunnar. (2016) Vannkraftens rennessanse . Adresseavisen
    Feature article
  • Østby, Petter Thorvald Haug; Billdal, Jan Tore; Sivertsen, Kjell; Haugen, Bjørn; Dahlhaug, Ole Gunnar. (2016) Dynamic Stresses In High Head Francis Turbines. International journal on hydropower and dams
    Academic article
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian; Thapa, Bhola. (2016) Effects of sediment erosion in guide vanes of Francis turbines. Skipnes Kommunikasjon as
    Doctoral dissertation
  • Thapa, Biraj Singh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2016) Design and development of guide vane cascade for a low speed number Francis turbine. Journal of Hydrodynamics
    Academic article
  • Dahlhaug, Ole Gunnar. (2016) Vannkraftens renessanse. Adresseavisen
    Feature article
  • Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Experimental and Numerical Studies of a High-Head Francis Turbine: A Review of the Francis-99 Test Case. Energies
    Academic literature review
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2016) A reference Pelton turbine - High speed visualization in the rotating frame. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Bergan, Carl Werdelin; Goyal, Rahul; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Experimental Investigation of a High Head Model Francis Turbine During Steady-State Operation at Off-Design Conditions. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Goyal, Rahul; Bergan, Carl Werdelin; Cervantes, Michel; Gandhi, B. K.; Dahlhaug, Ole Gunnar. (2016) Experimental investigation on a high head model Francis turbine during load rejection. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2016) Evaluation of runner cone extension to dampen pressure pulsations in a Francis model turbine. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2016) Numerical investigation of the flow phenomena around a low specific speed Francis turbine’s guide vane cascade. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2016) Velocity and pressure measurements in guide vane clearance gap of a low specific speed Francis turbine. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2016) Study of the simultaneous effects of secondary flow and sediment erosion in Francis turbines. Renewable Energy
    Academic literature review
  • Goyal, Rahul; Trivedi, Chirag; Gandhi, BK; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Transient pressure measurements at part load operating condition of a high head model Francis turbine. Sādhanā
    Academic article
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2016) Experimental methods and design of a Pelton bucket. Doktoravhandlinger ved NTNU (2016:01)
    Doctoral dissertation
  • Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Numerical techniques applied to hydraulic turbines: a perspective review. Applied Mechanics Review
    Academic literature review
  • Brende, Hege; Dahlhaug, Ole Gunnar; Bruland, Oddbjørn; Helland, Ingeborg Palm. (2016) Vannkraft er det nye blå gullet for Norge. Aftenposten (morgenutg. : trykt utg.)
    Feature article

2015

  • Holst, Martin; Dahlhaug, Ole Gunnar; Faudot, Celine. (2015) CFD Analysis of Wave-Induced Loads on Tidal Turbine Blades. IEEE Journal of Oceanic Engineering
    Academic article
  • Bergan, Carl Werdelin; Amiri, Kaveh; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2015) Preliminary Measurements of the Radial Velocity in the Francis-99 Draft Tube Cone. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2015) Francis-99 Workshop 1: steady operation of Francis turbines. Journal of Physics: Conference Series (JPCS)
    Editorial
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2015) Sediment erosion in hydro turbines and its effect on the flow around guide vanes of Francis turbine. Renewable and Sustainable Energy Reviews
    Academic article
  • Trivedi, Chirag; Gandhi, BK; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2015) Experimental investigations of a model Francis turbine during shutdown at synchronous speed. Renewable Energy
    Academic article
  • Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar; Gandhi, BK. (2015) Experimental investigation of a high head Francis turbine during spin-no-load operation. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2015) Studying the effects of jet alignment in Pelton units. International journal on hydropower and dams
    Academic article

2014

  • Trivedi, Chirag; Cervantes, Michel; Bhupendrakumar, Gandhi; Dahlhaug, Ole Gunnar. (2014) Pressure measurements on a high-head Francis turbine during load acceptance and rejection. Journal of Hydraulic Research
    Academic article
  • Sundström, Joel; Amiri, Kaveh; Bergan, Carl Werdelin; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2014) LDA measurements in the Francis-99 draft tube cone. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2014) A reference pelton turbine - design and efficiency measurements. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Trivedi, Chirag; Cervantes, Michel; Gandhi, B.K.; Dahlhaug, Ole Gunnar. (2014) Experimental investigations of transient pressure variations in a high head model Francis turbine during start-up and shutdown. Journal of Hydrodynamics
    Academic article
  • Dahlhaug, Ole Gunnar. (2014) Nøkkelen til en bedre verden. Adresseavisen
    Feature article
  • Trivedi, Chirag; Cervantes, Michel; Bhupendrakumar, Gandhi; Dahlhaug, Ole Gunnar. (2014) Transient pressure measurements on a high head model Francis turbine during emergency shutdown, total load rejection, and runaway. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Trivedi, Chirag; Cervantes, Michel; Gandhi, Bhupendra Kumar; Dahlhaug, Ole Gunnar. (2014) Pressure measurements on a high-head Francis turbine during load acceptance and rejection. Journal of Hydraulic Research
    Academic article

2013

  • Eltvik, Mette; Dahlhaug, Ole Gunnar. (2013) Sediment erosjion in Francis turbines. NTNU
    Doctoral dissertation
  • Shrestha, Krishna Prasad; Dahlhaug, Ole Gunnar; Thapa, Bhola; Neopane, Hari Prasad; Gurung, Nikhel; Kayastha, Atmaram. (2013) Optimized design of Francis runner for sand laden water. Hydro Nepal: Journal of Water, Energy and Environment
    Academic article
  • Trivedi, Chirag; Cervantes, Michel; Gandhi, B. K.; Dahlhaug, Ole Gunnar. (2013) Experimental and Numerical Studies for a High Head Francis Turbine at Several Operating Points. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Fossum, Peter Kalsaas; Frøyd, Lars; Dahlhaug, Ole Gunnar. (2013) Design and Fatigue Performance of Large Utility-Scale Wind Turbine Blades. Journal of solar energy engineering
    Academic article

2012

  • Frøyd, Lars; Dahlhaug, Ole Gunnar. (2012) Wind turbine design: Evaluation of dynamic loads on large offshore wind turbines. Norges teknisk-naturvitenskapelige universitet Doktoravhandlinger ved NTNU (241)
    Doctoral dissertation
  • Frøyd, Lars; Dahlhaug, Ole Gunnar. (2012) Effect of Pitch and Safety System Design on Dimensioning Loads for Offshore Wind Turbines During Grid Fault. Energy Procedia
    Academic article
  • Neopane, Hari Prasad; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) PARTICLE VELOCITY MEASUREMENT IN SWIRL FLOW, LABORATORY STUDIES. Kathmandu University Journal of Science, Engineering and Technology
    Academic literature review
  • Faudot, Celine; Dahlhaug, Ole Gunnar. (2012) Prediction of Wave Loads on Tidal Turbine Blades. Energy Procedia
    Academic article
  • Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Empirical modelling of sediment erosion in Francis turbines. Energy
    Academic article
  • Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2012) The effect of sediment characteristics for predicting erosion on Francis turbines blades. International journal on hydropower and dams
    Academic article
  • Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Current research in hydraulic turbines for handling sediments. Energy
    Academic article
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2012) A Reference Pelton Turbine Design. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article

2011

  • Ramdal, Jørgen; Dahlhaug, Ole Gunnar. (2011) Efficiency measurements in low head hydro power plants. Norges teknisk-naturvitenskapelige universitet NTNU Trondheim
    Doctoral dissertation
  • Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2011) Sediment erosion in hydraulic turbines. Global Journal of researches in engineering
    Academic literature review
  • Frøyd, Lars; Dahlhaug, Ole Gunnar. (2011) A Conceptual Design Method for Parametric Study of Blades for Offshore Wind Turbines (OMAE2011-49743). The American Society of Mechanical Engineers (ASME)
    Academic chapter/article/Conference paper
  • Faudot, Celine; Dahlhaug, Ole Gunnar. (2011) Tidal Turbine Blades: Design and Dynamic Loads Estimation Using CFD and Blade Element Momentum Theory (OMAE2011-49740). The American Society of Mechanical Engineers (ASME)
    Academic chapter/article/Conference paper
  • Frøyd, Lars; Dahlhaug, Ole Gunnar. (2011) Rotor Design for a 10 MW Offshore Wind Turbine. International Society of Offshore & Polar Engineers
    Academic chapter/article/Conference paper
  • Dahlhaug, Ole Gunnar; Valmot, Odd Richard. (2011) Løste en av vannkraftens største utfordringer. Teknisk Ukeblad
    Interview Journal
  • Anne-Lise, Aakervik; Dahlhaug, Ole Gunnar. (2011) Vannkraft i vinden. Energi
    Interview Journal

2010

  • Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2010) Sediment erosion in hydro turbines. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Doctoral dissertation
  • Dahlhaug, Ole Gunnar; Skåre, Per Egil; Mossing, V.; Gutierrez, A.. (2010) Erosion resistant coatings for Francis runner and guidevanes. International journal on hydropower and dams
    Academic article

2009

  • Thapa, Bhola; Dahlhaug, Ole Gunnar. (2009) Turbine Testing Laboratory and its Role in Hydropower. Hydro Nepal: Journal of Water, Energy and Environment
    Academic article

2008

  • Bajracharya, Tri ratna; Acharya, B.; Joshi, C.B.; Saini, R.P.; Dahlhaug, Ole Gunnar. (2008) Sand erosion of Pelton turbine nozzles and buckets: A case study of Chilime Hydropower Plant. Wear
    Academic article

2007

  • Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 VA-Tech runner. Institutt for energi og prosessteknikk, NTNU
    Report
  • Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 NTNU reference runner. Institutt for energi og prosessteknikk, NTNU
    Report
  • Francke, Håkon Hjort; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Kobro, Einar. (2007) Saurdal pumpekraftverk - Virkningsgrads- og falltapsmålinger. Vannkraftlabortaoriet
    Report

2006

  • Skåre, Per Egil; Dahlhaug, Ole Gunnar; Kobro, Einar. (2006) Sandslitasje i Pelton løpehjul. SINTEF Energiforskning AS
    Report
  • Skåre, Per Egil; Dahlhaug, Ole Gunnar. (2006) Tapsanalyse og Skalaeffekt. SINTEF Energiforskning AS
    Report
  • Bajracharya, Tri ratna; Joshi, C.B.; Saini, R.P.; Dahlhaug, Ole Gunnar. (2006) Correlation between sand led erosion of Pelton buckets and efficiency losses in high head hydropower schemes. Journal of the institute of engineering
    Academic article

2005

  • Dahlhaug, Ole Gunnar; Støle, Haakon; Pradhan, Pratik; Joshi, Pabitra; Bishwakarma, Meg. (2005) Sediment and efficiency measurement at Khimti I hydropower plant - Monsoon 2004. Hydro Lab Ltd.
    Report

2004

  • Dahlhaug, Ole Gunnar; Pratik, Pradhan. (2004) Efficiency measurements at Andi Khola Hydropower Plant. Hydro Lab Ltd
    Report
  • Dahlhaug, Ole Gunnar; Støle, Haakon; Pradhan, Pratik; Joshi, Pabitra; Bishwakarma, Meg. (2004) Sediment and efficiency measurements at Jhimruk Hydropower Plant - Monsoon 2003. Hydro Lab Ltd.
    Report

2003

  • Dahlhaug, Ole Gunnar; Brekke, Hermod. (2003) Innovations in Turbine Design and Generator Condition Assesment. Hydro Review Worldwide
    Academic article

2002

  • Knudsen, Sverre D; Dahlhaug, Ole Gunnar; Kjeldsen, Morten; Børresen, Bjarne. (2002) Turbomachinery Calculations at highly off-design conditions. International Journal of Applied Mechanics and Engineering
    Academic article
  • Dahlhaug, Ole Gunnar. (2002) Utvikling av tidevannsturbin : prototype på 50 meters dyp i Kvalsundet. Xergi
    Popular scientific article
  • Dahlhaug, Ole Gunnar; Martinsen, Anna Louise. (2002) Nasjonalt kontroll-laboratorium for små turbiner. Xergi
    Popular scientific article
  • Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmåling ved Breivikbotn Kraftverk. NTNU
    Report
  • Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmålinger ved Øvre Porsa Kraftverk. Vannkraftlaboratoriet, NTNU
    Report
  • Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2002) Status for mini- og mikrokraftverk i Norge. Vannkraftlaboratoriet, NTNU
    Report
  • Martinsen, Anna Louise; Dahlhaug, Ole Gunnar. (2002) Miljøtilpasset el-kraftproduksjon ved små vannkraftverk i distrikts-Norge. NTNU, Trondheim, Norge
    Report

2000

  • Dahlhaug, Ole Gunnar; Skåre, Per Egil; Børresen, Bjarne. (2000) CFD-CALCULATION OF SWIRLFLOW IN A CONICAL DIFFUSER AND BEND. IAHR Symposium, Hydraulic Machinery and Systems. Conference Proceedings
    Academic article
  • Dahlhaug, Ole Gunnar; Brekke, Hermod. (2000) HIGH TECNOLOGY VERSUS LOW COSTS FOR SMALL HYDRO FRANCIS TURBINES. SMALL HYDRO 2000, Conference Proceedings, 8-12 May 2000
    Academic article

1998

  • Dahlhaug, Ole Gunnar. (1998) Termodynamisk virkningsgradsmåling for lave fallhøyder. SINTEF Energiforskning
    Report
  • Dahlhaug, Ole Gunnar. (1998) A study of swirl flow in draft tubes. NTNU, Trondheim
    Doctoral dissertation

1996

  • Dahlhaug, Ole Gunnar; Vekve, Thomas. (1996) LDV-measurements in circular sections. SINTEF Strømningsmaskiner
    Report

Journal publications

  • Belsnes, Michael Martin; Dahlhaug, Ole Gunnar; Doujak, Eduard; Mayo-Garcia, Rafael; Köhler, Berit; Sciullo, Alessandro. (2025) Preface for the "Revamping hydropower research” publication. IOP Conference Series: Earth and Environmental Science (EES)
    Editorial
  • Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2025) Methods to prevent or mitigate total dissolved gas supersaturation in the waterways downstream hydropower plants. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Kayastha, Atmaram; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2025) Experimental Approach to Evaluate Effectiveness of Vortex Generators on Francis Turbine Runner. Energies
    Academic article
  • Karna, Aaditya; Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2025) A review of condition monitoring in Francis turbines for predictive maintenance. Journal of Vibration and Control
    Academic literature review
  • Zhao, Zilong; Qian, Zhongdong; Dahlhaug, Ole Gunnar; Guo, Zhiwei. (2025) Effect of leakage flow on sediment erosion in guide vane region. International Journal of Mechanical Sciences
    Academic article
  • Kayastha, Atmaram; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2024) A numerical study on the effect of spanwise installation of vortex generators on Francis runner blades. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2024) Ultrasonic degassing of TDG supersaturated, flowing water. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Abregu Ochoa, Jim Furcio; Scheuer, Jonas; Satyal, Sajan; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2024) Evaluation of the jet distortion by sediment erosion in the needle in the Pelton turbines. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Iliev, Igor; Dahlhaug, Ole Gunnar. (2024) Correlating Sediment Erosion in Rotary–Stationary Gaps of Francis Turbines with Complex Flow Patterns. Energies
    Academic article
  • Kverno, Johannes Opedal; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2023) Calibration of strain gauges on a model runner blade combining numerical and experimental data. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2023) Evaluating natural degassing in a river to create a baseline for comparison to technical degassing methods. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Kverno, Johannes Opedal; Vefring, Gaute Elde; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2023) Challenges with onboard strain measurements on a model Francis turbine runner. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Kayastha, Atmaram; Ghimire, Amul; Bijukchhe, Pawan Lal; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2023) Numerical investigation of model Francis turbine for performance enhancement with geometrical modification. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Wang, Hong; Ou, Shiqi; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Skjelbred, Hans Ivar; Vilberg, Ingrid Kristine. (2023) Adaptively Learned Modeling for a Digital Twin of Hydropower Turbines with Application to a Pilot Testing System. Mathematics
    Academic article
  • Gautam, Saroj; Chitrakar, Sailesh; Neopane, Hari Prasad; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2022) Numerical investigation of a Pelton turbine at several operating conditions. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2022) Development of simplified model for prediction of sediment induced erosion in Francis turbine’s sidewall gaps . IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2022) Application of hydro-abrasive erosion model from IEC 62364:2019 standard in Francis turbines. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Gautam, Saroj; Acharya, Nirmal; Chitrakar, Sailesh; Neopane, Hari Prasad; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) Sediment erosion in the labyrinths of Francis turbine: A numerical study. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Lazarevikj, Marija; Stojkovski, Filip; Markov, Zoran; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) Parameter based tool for Francis turbine guide vanes design using coupled MATLAB-ANSYS approach. Journal of Sustainable Development of Energy, Water and Environment Systems
    Academic article
  • Kverno, Johannes Opedal; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) High flexibility in Francis turbine operation and design philosophy: A review. IOP Conference Series: Earth and Environmental Science (EES)
    Academic literature review
  • Gautam, Saroj; Acharya, Nirmal; Lama, Ram; Chitrakar, Sailesh; Neopane, Hari Prasad; Zhu, Baoshan. (2022) Numerical and experimental investigation of erosive wear in Francis runner blade optimized for sediment laden hydropower projects in Nepal. Sustainable Energy Technologies and Assessments
    Academic article
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Sigurdsson, Bjarki; Tengs, Erik Os. (2021) Modal testing of the Francis-99 runner. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Stojkovski, Filip; Lazarevikj, Marija; Markov, Zoran; Iliev, Igor; Dahlhaug, Ole Gunnar. (2021) Constraints of Parametrically Defined Guide Vanes for a High-Head Francis Turbine. Energies
    Academic article
  • Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2021) Leakage Vortex Progression through a Guide Vane’s Clearance Gap and the Resulting Pressure Fluctuation in a Francis Turbine. Energies
    Academic article
  • Dahlhaug, Ole Gunnar; Jørgen Ranum, Krokstad. (2021) Vind- og vannkraften kan gjøre Norge 100 prosent fornybar. Adresseavisen
    Feature article
  • Acharya, Nirmal; Trivedi, Chirag; Gautam, Saroj; Dahlhaug, Ole Gunnar. (2021) Investigation of sediment erosion phenomenon for different blade angle distribution in Francis runner. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar; Lee, Young Ho; Zhongdong, Qian. (2021) Current research in hydraulic turbines against sediment erosion: International partnership and collaborations. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Dahlhaug, Ole Gunnar; Bakken, Tor Haakon; Hultgren, Liv Randi; Bergmann-Paulsen, Jonas. (2021) Norge må bygge ut mer vannkraft. Adresseavisen
    Feature article
  • Agnalt, Einar; Solemslie, Bjørn Winther; Storli, Pål-Tore Selbo; Dahlhaug, Ole Gunnar. (2020) The Rotor-Stator Interaction Onboard a Low Specific speed Francis Turbine. International Journal of Fluid Machinery and Systems
    Academic article
  • Trivedi, Chirag; Iliev, Igor; Dahlhaug, Ole Gunnar; Zoran, Markov; Engstrom, Fredrik; Lysaker, Henning. (2020) Investigation of a Francis turbine during speed variation: Inception of cavitation. Renewable Energy
    Academic article
  • Iliev, Igor; Tengs, Erik Os; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2020) Optimization of Francis Turbines for Variable Speed Operation Using Surrogate Modeling Approach. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Støren, Gine Kirkebøen; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther. (2020) Signature Investigation of Typical Faults on Francis Turbines. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Volent, Eirik; Sagmo, Kristian Forfot; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2020) Experimental Study of Flow Structure in Converging–Diverging Axisymmetric Geometry. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Chitrakar, Sailesh; Solemslie, Bjørn Winther; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2020) Review on numerical techniques applied in impulse hydro turbines. Renewable Energy
    Academic literature review
  • Trivedi, Chirag; Iliev, Igor; Dahlhaug, Ole Gunnar. (2020) Numerical study of a Francis turbine over wide operating range: Some practical aspects of verification. Sustainability
    Academic article
  • Iliev, Igor; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2019) Variable-speed operation and pressure pulsations in a Francis turbine and a pump-turbine. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Agnalt, Einar; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) Onboard measurements of pressure pulsations in a high head Francis model runner. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Solemslie, Bjørn Winther; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2019) Pressure Pulsations and Fatigue Loads in High Head Francis Turbines. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) An Experimental Investigation of the Hydroynamic Damping of Vibrating Hydrofoils. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2019) The numerical and experimental investigation of erosion induced leakage flow through guide vanes of Francis turbine . IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Agnalt, Einar; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) On the Rotor Stator Interaction Effects of Low Specific Speed Francis Turbines. International Journal of Rotating Machinery
    Academic article
  • Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2019) Signature analysis of characteristic frequencies in a Francis turbine. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Volent, Eirik; Dahlhaug, Ole Gunnar; Tengs, Erik Os. (2019) Study of flow structure in erosion prone complex geometries. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) A comprehensive review of verification and validation techniques applied to hydraulic turbines. International Journal of Fluid Machinery and Systems
    Academic literature review
  • Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2019) Development of a test rig for investigating the flow field around guide vanes of Francis turbines. Flow Measurement and Instrumentation
    Academic article
  • Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) Variable-speed operation of Francis turbines: A review of the perspectives and challenges. Renewable and Sustainable Energy Reviews
    Academic literature review
  • Trivedi, Chirag; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2019) Francis-99 Workshop 3: Fluid structure interaction. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Nordvik, Andreas; Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) Numerical prediction of hill charts of Francis turbines. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Acharya, Nirmal; Trivedi, Chirag; Wahl, Nina Marie; Gautam, S; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2019) Numerical study of sediment erosion in guide vanes of a high head Francis turbine. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Neopane, Hari Prasad; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2019) Role of Turbine Testing Lab for overcoming the challenges related to hydropower development in Nepal. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Østby, Petter Thorvald Krogh; Dahlhaug, Ole Gunnar. (2019) Damping Measurements on a Multi-Blade Cascade with Multiple Degrees of Freedom: A Francis-99 Test Case. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Østby, Petter Thorvald Krogh; Agnalt, Einar; Haugen, Bjørn; Billdal, Jan Tore; Dahlhaug, Ole Gunnar. (2019) Fluid structure interaction of Francis-99 turbine and experimental validation. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2018) Flow measurements around guide vanes of Francis turbine: A PIV approach. Renewable Energy
    Academic article
  • Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Experimental investigation of a Francis turbine during exigent ramping and transition into total load rejection. Journal of Hydraulic Engineering
    Academic article
  • Chitrakar, Sailesh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2018) Numerical investigation of the effet of leakage flow through erosion-induced clearance gaps of guide vanes on the performance of Francis turbines. Engineering Applications of Computational Fluid Mechanics
    Academic article
  • Agnalt, Einar; Østby, Petter Thorvald Krogh; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2018) Experimental Study of a Low-Specific Speed Francis Model Runner during Resonance. Shock and Vibration
    Academic article
  • Bergan, Carl Werdelin; Solemslie, Bjørn Winther; Østby, Petter Thorvald Haug; Dahlhaug, Ole Gunnar. (2018) Hydrodynamic Damping of a Fluttering Hydrofoil in High-speed Flows. International Journal of Fluid Machinery and Systems
    Academic article
  • Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2018) Interaction between trailing edge wake and vortex rings in a Francis turbine at runaway condition: Compressible large eddy simulation. Physics of Fluids
    Academic article
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2018) A Reference Pelton Turbine - Three-Dimensional Flow Front Tracking Within a Rotating Pelton Bucket. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2018) Simplified hydrodynamic analysis on the general shape of the hill charts of Francis turbines using shroud-streamline modeling. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Ulvan, Vegard S.; Kverno, Johannes O.; Dahlhaug, Ole Gunnar. (2018) Pressure pulsations and hydraulic efficiency at Smeland power plant. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Sannes, Daniel B.; Iliev, Igor; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Pressure Pulsation in a High Head Francis Turbine Operating at Variable Speed. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Shrestha, K.P.; Chitrakar, Sailesh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2018) Performance Comparison of Optimized Designs of Francis Turbines Exposed to Sediment Erosion in various Operating Conditions. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Volent, Eirik; Dahlhaug, Ole Gunnar. (2018) Literature review relevant to particle erosion in complex geometries. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Trivedi, Chirag; Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2018) Investigation of the Unsteady Pressure Pulsations in the Prototype Francis Turbines -Part 1: Steady State Operating Conditions. Mechanical systems and signal processing
    Academic article
  • Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Experimental study of a Francis turbine under variable-speed and discharge conditions. Renewable Energy
    Academic article
  • Trivedi, Chirag; Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2017) Investigation of the unsteady pressure pulsations in the prototype Francis turbines during load variation and startup. Journal of Renewable and Sustainable Energy
    Academic article
  • Dahlhaug, Ole Gunnar. (2017) Norsk vannkraft kan utnyttes bedre. Adresseavisen
    Feature article
  • Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2017) Experimental investigation of air injection in high head Francis turbines. International journal on hydropower and dams
    Academic article
  • Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2017) Particle Image Velocimetry Investigation of the Leakage Flow Through Clearance Gaps in Cambered Hydrofoils. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Østby, Petter Thorvald Haug; Billdal, Jan Tore; Haugen, Bjørn; Dahlhaug, Ole Gunnar. (2017) On the relation between friction losses and pressure pulsations caused by Rotor Stator interaction on the Francis-99 turbine. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2017) Effects of sediment erosion in guide vanes of Francis turbine. Wear
    Academic article
  • Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Francis-99 Workshop 2: transient operation of Francis turbines. Journal of Physics: Conference Series (JPCS)
    Editorial
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2017) Sediment erosion induced leakage flow from guide vane clearance gap in a low specific speed Francis turbine. Renewable Energy
    Academic article
  • Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2017) Numerical and experimental study of the leakage flow in guide vanes with different hydrofoils. Journal of Computational Design and Engineering
    Academic article
  • Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2017) Investigations of unsteady pressure loading in a Francis turbine during variable-speed operation. Renewable Energy
    Academic article
  • Gong, Ruzhi; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Blade passage modeling strategy for hydraulic turbine. International Journal of Fluid Machinery and Systems
    Academic article
  • Dahlhaug, Ole Gunnar. (2016) Vannkraftens rennessanse . Adresseavisen
    Feature article
  • Østby, Petter Thorvald Haug; Billdal, Jan Tore; Sivertsen, Kjell; Haugen, Bjørn; Dahlhaug, Ole Gunnar. (2016) Dynamic Stresses In High Head Francis Turbines. International journal on hydropower and dams
    Academic article
  • Thapa, Biraj Singh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2016) Design and development of guide vane cascade for a low speed number Francis turbine. Journal of Hydrodynamics
    Academic article
  • Dahlhaug, Ole Gunnar. (2016) Vannkraftens renessanse. Adresseavisen
    Feature article
  • Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Experimental and Numerical Studies of a High-Head Francis Turbine: A Review of the Francis-99 Test Case. Energies
    Academic literature review
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2016) A reference Pelton turbine - High speed visualization in the rotating frame. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Bergan, Carl Werdelin; Goyal, Rahul; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Experimental Investigation of a High Head Model Francis Turbine During Steady-State Operation at Off-Design Conditions. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Goyal, Rahul; Bergan, Carl Werdelin; Cervantes, Michel; Gandhi, B. K.; Dahlhaug, Ole Gunnar. (2016) Experimental investigation on a high head model Francis turbine during load rejection. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2016) Evaluation of runner cone extension to dampen pressure pulsations in a Francis model turbine. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2016) Numerical investigation of the flow phenomena around a low specific speed Francis turbine’s guide vane cascade. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2016) Velocity and pressure measurements in guide vane clearance gap of a low specific speed Francis turbine. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2016) Study of the simultaneous effects of secondary flow and sediment erosion in Francis turbines. Renewable Energy
    Academic literature review
  • Goyal, Rahul; Trivedi, Chirag; Gandhi, BK; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Transient pressure measurements at part load operating condition of a high head model Francis turbine. Sādhanā
    Academic article
  • Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Numerical techniques applied to hydraulic turbines: a perspective review. Applied Mechanics Review
    Academic literature review
  • Brende, Hege; Dahlhaug, Ole Gunnar; Bruland, Oddbjørn; Helland, Ingeborg Palm. (2016) Vannkraft er det nye blå gullet for Norge. Aftenposten (morgenutg. : trykt utg.)
    Feature article
  • Holst, Martin; Dahlhaug, Ole Gunnar; Faudot, Celine. (2015) CFD Analysis of Wave-Induced Loads on Tidal Turbine Blades. IEEE Journal of Oceanic Engineering
    Academic article
  • Bergan, Carl Werdelin; Amiri, Kaveh; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2015) Preliminary Measurements of the Radial Velocity in the Francis-99 Draft Tube Cone. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2015) Francis-99 Workshop 1: steady operation of Francis turbines. Journal of Physics: Conference Series (JPCS)
    Editorial
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2015) Sediment erosion in hydro turbines and its effect on the flow around guide vanes of Francis turbine. Renewable and Sustainable Energy Reviews
    Academic article
  • Trivedi, Chirag; Gandhi, BK; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2015) Experimental investigations of a model Francis turbine during shutdown at synchronous speed. Renewable Energy
    Academic article
  • Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar; Gandhi, BK. (2015) Experimental investigation of a high head Francis turbine during spin-no-load operation. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2015) Studying the effects of jet alignment in Pelton units. International journal on hydropower and dams
    Academic article
  • Trivedi, Chirag; Cervantes, Michel; Bhupendrakumar, Gandhi; Dahlhaug, Ole Gunnar. (2014) Pressure measurements on a high-head Francis turbine during load acceptance and rejection. Journal of Hydraulic Research
    Academic article
  • Sundström, Joel; Amiri, Kaveh; Bergan, Carl Werdelin; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2014) LDA measurements in the Francis-99 draft tube cone. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2014) A reference pelton turbine - design and efficiency measurements. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Trivedi, Chirag; Cervantes, Michel; Gandhi, B.K.; Dahlhaug, Ole Gunnar. (2014) Experimental investigations of transient pressure variations in a high head model Francis turbine during start-up and shutdown. Journal of Hydrodynamics
    Academic article
  • Dahlhaug, Ole Gunnar. (2014) Nøkkelen til en bedre verden. Adresseavisen
    Feature article
  • Trivedi, Chirag; Cervantes, Michel; Bhupendrakumar, Gandhi; Dahlhaug, Ole Gunnar. (2014) Transient pressure measurements on a high head model Francis turbine during emergency shutdown, total load rejection, and runaway. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Trivedi, Chirag; Cervantes, Michel; Gandhi, Bhupendra Kumar; Dahlhaug, Ole Gunnar. (2014) Pressure measurements on a high-head Francis turbine during load acceptance and rejection. Journal of Hydraulic Research
    Academic article
  • Shrestha, Krishna Prasad; Dahlhaug, Ole Gunnar; Thapa, Bhola; Neopane, Hari Prasad; Gurung, Nikhel; Kayastha, Atmaram. (2013) Optimized design of Francis runner for sand laden water. Hydro Nepal: Journal of Water, Energy and Environment
    Academic article
  • Trivedi, Chirag; Cervantes, Michel; Gandhi, B. K.; Dahlhaug, Ole Gunnar. (2013) Experimental and Numerical Studies for a High Head Francis Turbine at Several Operating Points. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Fossum, Peter Kalsaas; Frøyd, Lars; Dahlhaug, Ole Gunnar. (2013) Design and Fatigue Performance of Large Utility-Scale Wind Turbine Blades. Journal of solar energy engineering
    Academic article
  • Frøyd, Lars; Dahlhaug, Ole Gunnar. (2012) Effect of Pitch and Safety System Design on Dimensioning Loads for Offshore Wind Turbines During Grid Fault. Energy Procedia
    Academic article
  • Neopane, Hari Prasad; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) PARTICLE VELOCITY MEASUREMENT IN SWIRL FLOW, LABORATORY STUDIES. Kathmandu University Journal of Science, Engineering and Technology
    Academic literature review
  • Faudot, Celine; Dahlhaug, Ole Gunnar. (2012) Prediction of Wave Loads on Tidal Turbine Blades. Energy Procedia
    Academic article
  • Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Empirical modelling of sediment erosion in Francis turbines. Energy
    Academic article
  • Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2012) The effect of sediment characteristics for predicting erosion on Francis turbines blades. International journal on hydropower and dams
    Academic article
  • Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Current research in hydraulic turbines for handling sediments. Energy
    Academic article
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2012) A Reference Pelton Turbine Design. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2011) Sediment erosion in hydraulic turbines. Global Journal of researches in engineering
    Academic literature review
  • Dahlhaug, Ole Gunnar; Valmot, Odd Richard. (2011) Løste en av vannkraftens største utfordringer. Teknisk Ukeblad
    Interview Journal
  • Anne-Lise, Aakervik; Dahlhaug, Ole Gunnar. (2011) Vannkraft i vinden. Energi
    Interview Journal
  • Dahlhaug, Ole Gunnar; Skåre, Per Egil; Mossing, V.; Gutierrez, A.. (2010) Erosion resistant coatings for Francis runner and guidevanes. International journal on hydropower and dams
    Academic article
  • Thapa, Bhola; Dahlhaug, Ole Gunnar. (2009) Turbine Testing Laboratory and its Role in Hydropower. Hydro Nepal: Journal of Water, Energy and Environment
    Academic article
  • Bajracharya, Tri ratna; Acharya, B.; Joshi, C.B.; Saini, R.P.; Dahlhaug, Ole Gunnar. (2008) Sand erosion of Pelton turbine nozzles and buckets: A case study of Chilime Hydropower Plant. Wear
    Academic article
  • Bajracharya, Tri ratna; Joshi, C.B.; Saini, R.P.; Dahlhaug, Ole Gunnar. (2006) Correlation between sand led erosion of Pelton buckets and efficiency losses in high head hydropower schemes. Journal of the institute of engineering
    Academic article
  • Dahlhaug, Ole Gunnar; Brekke, Hermod. (2003) Innovations in Turbine Design and Generator Condition Assesment. Hydro Review Worldwide
    Academic article
  • Knudsen, Sverre D; Dahlhaug, Ole Gunnar; Kjeldsen, Morten; Børresen, Bjarne. (2002) Turbomachinery Calculations at highly off-design conditions. International Journal of Applied Mechanics and Engineering
    Academic article
  • Dahlhaug, Ole Gunnar. (2002) Utvikling av tidevannsturbin : prototype på 50 meters dyp i Kvalsundet. Xergi
    Popular scientific article
  • Dahlhaug, Ole Gunnar; Martinsen, Anna Louise. (2002) Nasjonalt kontroll-laboratorium for små turbiner. Xergi
    Popular scientific article
  • Dahlhaug, Ole Gunnar; Skåre, Per Egil; Børresen, Bjarne. (2000) CFD-CALCULATION OF SWIRLFLOW IN A CONICAL DIFFUSER AND BEND. IAHR Symposium, Hydraulic Machinery and Systems. Conference Proceedings
    Academic article
  • Dahlhaug, Ole Gunnar; Brekke, Hermod. (2000) HIGH TECNOLOGY VERSUS LOW COSTS FOR SMALL HYDRO FRANCIS TURBINES. SMALL HYDRO 2000, Conference Proceedings, 8-12 May 2000
    Academic article

Books

  • Belsnes, Michael Martin; Dahlhaug, Ole Gunnar; Doujak, Eduard; Mayo-Garcia, Rafael; Köhler, Berit; Sciullo, Alessandro. (2025) Revamping hydropower research 24/09/2024 - 24/09/2024 Brussels, Belgium. IOP Publishing IOP Conference Series: Earth and Environmental Science (EES) (1442)
    Academic anthology/Conference proceedings

Part of book/report

  • Wang, Hong; Ahmed, Osman; DeSomber, Kyle; Sasthav, Colin; Storli, Pål-Tore Selbo; Dahlhaug, Ole Gunnar. (2023) Adaptive Hybrid 1D Modeling for Digital Twin of Hydropower Systems. The International Association for Hydro-Environment Engineering and Research (IAHR)
    Academic chapter/article/Conference paper
  • Frøyd, Lars; Dahlhaug, Ole Gunnar. (2011) A Conceptual Design Method for Parametric Study of Blades for Offshore Wind Turbines (OMAE2011-49743). The American Society of Mechanical Engineers (ASME)
    Academic chapter/article/Conference paper
  • Faudot, Celine; Dahlhaug, Ole Gunnar. (2011) Tidal Turbine Blades: Design and Dynamic Loads Estimation Using CFD and Blade Element Momentum Theory (OMAE2011-49740). The American Society of Mechanical Engineers (ASME)
    Academic chapter/article/Conference paper
  • Frøyd, Lars; Dahlhaug, Ole Gunnar. (2011) Rotor Design for a 10 MW Offshore Wind Turbine. International Society of Offshore & Polar Engineers
    Academic chapter/article/Conference paper

Report

  • Kuhn, Wolf Ludwig; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther; Hihn, Jean-Yves. (2023) Evaluation of ultrasonic degasification as a tool to mitigate total dissolved gas supersaturation downstream hydropower plants. Doktoravhandlinger ved NTNU (2023:445)
    Doctoral dissertation
  • Kverno, Johannes Opedal; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Iliev, Igor; Solemslie, Bjørn Winther. (2023) Flexible operation of Francis turbines. Doktoravhandlinger ved NTNU (2023:387)
    Doctoral dissertation
  • Kuhn, Wolf Ludwig; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther; Hihn, Jean-Yves. (2023) Evaluation of ultrasonic degasification as a tool to mitigate total dissolved gas supersaturation downstream hydropower plants. Doktoravhandlinger ved NTNU (2023:445)
    Doctoral dissertation
  • Vereide, Kaspar Vatland; Mo, Birger; Forseth, Torbjørn; Lia, Leif; Nysveen, Arne; Dahlhaug, Ole Gunnar. (2020) AlternaFuture. Norwegian Research Centre for Hydropower Technology TRONDHEIM
    Report
  • Agnalt, Einar; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo. (2019) Rotor-Stator Interaction in low-specific speed Francis Turbines. Doktoravhandlinger ved NTNU (2019:219)
    Doctoral dissertation
  • Siemonsmeier, Marius; Baumanns, Philipp; van Bracht, Niklas; Schönefeld, Maik; Schönbauer, Andrea; Moser, Albert. (2018) Hydropower Providing Flexibility for a Renewable Energy System: Three European Energy Scenarios. HydroFlex
    Report
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian; Thapa, Bhola. (2016) Effects of sediment erosion in guide vanes of Francis turbines. Skipnes Kommunikasjon as
    Doctoral dissertation
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2016) Experimental methods and design of a Pelton bucket. Doktoravhandlinger ved NTNU (2016:01)
    Doctoral dissertation
  • Eltvik, Mette; Dahlhaug, Ole Gunnar. (2013) Sediment erosjion in Francis turbines. NTNU
    Doctoral dissertation
  • Frøyd, Lars; Dahlhaug, Ole Gunnar. (2012) Wind turbine design: Evaluation of dynamic loads on large offshore wind turbines. Norges teknisk-naturvitenskapelige universitet Doktoravhandlinger ved NTNU (241)
    Doctoral dissertation
  • Ramdal, Jørgen; Dahlhaug, Ole Gunnar. (2011) Efficiency measurements in low head hydro power plants. Norges teknisk-naturvitenskapelige universitet NTNU Trondheim
    Doctoral dissertation
  • Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2010) Sediment erosion in hydro turbines. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Doctoral dissertation
  • Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 VA-Tech runner. Institutt for energi og prosessteknikk, NTNU
    Report
  • Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 NTNU reference runner. Institutt for energi og prosessteknikk, NTNU
    Report
  • Francke, Håkon Hjort; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Kobro, Einar. (2007) Saurdal pumpekraftverk - Virkningsgrads- og falltapsmålinger. Vannkraftlabortaoriet
    Report
  • Skåre, Per Egil; Dahlhaug, Ole Gunnar; Kobro, Einar. (2006) Sandslitasje i Pelton løpehjul. SINTEF Energiforskning AS
    Report
  • Skåre, Per Egil; Dahlhaug, Ole Gunnar. (2006) Tapsanalyse og Skalaeffekt. SINTEF Energiforskning AS
    Report
  • Dahlhaug, Ole Gunnar; Støle, Haakon; Pradhan, Pratik; Joshi, Pabitra; Bishwakarma, Meg. (2005) Sediment and efficiency measurement at Khimti I hydropower plant - Monsoon 2004. Hydro Lab Ltd.
    Report
  • Dahlhaug, Ole Gunnar; Pratik, Pradhan. (2004) Efficiency measurements at Andi Khola Hydropower Plant. Hydro Lab Ltd
    Report
  • Dahlhaug, Ole Gunnar; Støle, Haakon; Pradhan, Pratik; Joshi, Pabitra; Bishwakarma, Meg. (2004) Sediment and efficiency measurements at Jhimruk Hydropower Plant - Monsoon 2003. Hydro Lab Ltd.
    Report
  • Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmåling ved Breivikbotn Kraftverk. NTNU
    Report
  • Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmålinger ved Øvre Porsa Kraftverk. Vannkraftlaboratoriet, NTNU
    Report
  • Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2002) Status for mini- og mikrokraftverk i Norge. Vannkraftlaboratoriet, NTNU
    Report
  • Martinsen, Anna Louise; Dahlhaug, Ole Gunnar. (2002) Miljøtilpasset el-kraftproduksjon ved små vannkraftverk i distrikts-Norge. NTNU, Trondheim, Norge
    Report
  • Dahlhaug, Ole Gunnar. (1998) Termodynamisk virkningsgradsmåling for lave fallhøyder. SINTEF Energiforskning
    Report
  • Dahlhaug, Ole Gunnar. (1998) A study of swirl flow in draft tubes. NTNU, Trondheim
    Doctoral dissertation
  • Dahlhaug, Ole Gunnar; Vekve, Thomas. (1996) LDV-measurements in circular sections. SINTEF Strømningsmaskiner
    Report

INFORMASJONSMATR

  • Rijal, Mamata; Dahlhaug, Ole Gunnar. (2024) Study of Labyrinth Seals of Francis Turbines for Sediment-laden Hydropower.
    Briefs
  • Abregu, Jim; Dahlhaug, Ole Gunnar. (2024) Erosion on Pelton turbines.
    Briefs
  • Dahlhaug, Ole Gunnar; Støren, Gine Kirkebøen. (2021) ldentifisering av sprekker i Francis turbiner.
    Briefs

Teaching

Courses

  • EP8407 - Høytrykks vannkraftmaskiner
  • TEP4195 - Turbomaskiner
  • EP8406 - Frekvens- og effektregulering av vannkraftverk
  • TEP4906 - Bærekraftige energisystemer, masteroppgave
  • FENT2321 - Vindenergi og design av vindturbin
  • TEP4200 - Konstruksjon, drift og vedlikehold av hydrauliske strømningsmaskiner
  • BA8510 - Falltapsanalyser vanntunneler. Hydraulikk, sprengningsteknikk og økonomi
  • TEP4521 - Bærekraftige energisystemer, fordypningsprosjekt
  • EP8411 - Vannkraftverk; utvalgte tverrfaglige tema
  • TEP4225 - Energi og miljø
  • TEP4506 - Bærekraftige energisystemer, fordypningsemne

Outreach

2025

  • Poster
    Kuhn, Wolf Ludwig; Hihn, Jean-Yves; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2025) Technical mitigation of total dissolved gas supersaturation. Fornybar Norge Produksjonsteknisk konferanse , Trondheim 2025-03-10 - 2025-03-12
  • Academic lecture
    Kuhn, Wolf Ludwig; Ghimire, Amul; Shrestha, Sajan; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2025) Risk assessment for total dissolved gas supersaturation in the Nepali hydropower sector . Kathmandu University Current Research in Hydropower Technologies , Dhulikhel 2025-04-07 - 2025-04-07

2024

  • Academic lecture
    Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2024) Methods to prevent or mitigate total dissolved gas supersaturation in the waterways downstream hydropower plants. EERA JP Hydropower EERA Revamping Hydropower Research Workshop , Brussels 2024-09-24 - 2024-09-24
  • Academic lecture
    Pandey, Kamal P.; Albayrak, Ismail; Forseth, Torbjørn; Vetsch, David F.; Lillberg, Eric; Solemslie, Bjørn Winther. (2024) FishPath Project: Behavioral Responses of Atlantic Salmon Smolts to Vertical Eddies . ISE-FP 2024 2024-05-05 - 2024-05-09
  • Poster
    Kuhn, Wolf Ludwig; Hihn, Jean-Yves; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2024) Ultrasonic degassing of total dissolved gas supersaturated, flowing water in an experimental laboratory setup. ESS 18th Meeting of the European Society of Sonochemistry , Leuven 2024-05-27 - 2024-05-31
  • Academic lecture
    Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2024) Ultrasonic degassing of TDG supersaturated, flowing water. Kathmandu University Current Research In Hydropower Technologies, CRHT – XII , Dhulikhel 2024-03-18 - 2024-03-18
  • Academic lecture
    Kuhn, Wolf Ludwig; Hihn, Jean-Yves; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2024) Enhancement of liquid-gas mass transfer in total dissolved gas supersaturated water by technical methods. ESS 18th Meeting of the European Society of Sonochemistry , Leuven 2024-05-27 - 2027-05-31
  • Academic lecture
    Kuhn, Wolf Ludwig; Dahlhaug, Ole Gunnar. (2024) Challenges associated with flexible use of hydraulic turbines - a Norwegian perspective. PEN@Hydropower WG1, CA21104 Colloquium on flexibility impact on hydraulic machines aging , Vienna 2024-10-18 - 2024-10-18
  • Interview
    Hertwich, Edgar G.; Røkke, Nils Anders; Tomasgard, Asgeir; Wyckmans, Annemie Bertha Marcella; Gullbrekken, Lars; Hafner, Armin. (2024) As our energy demands increase, so the planet continues to overheat. But there is still hope. NorwegianSciTech News NorwegianSciTech News [Internet] 2024-11-07
  • Academic lecture
    Gundersen, Håvard Hartvig; Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2024) Mitigation of total dissolved gas supersaturation using a bubble curtain. IAHR 10th International Symposium on Environmental Hydraulics , Aberdeen 2024-06-25 - 2024-06-27
  • Academic lecture
    Kuhn, Wolf Ludwig; Gundersen, Håvard Hartvig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2024) Utilization of gas bubbling to mitigate total dissolved gas supersaturation downstream hydropower plants. TU Wien 22nd International Seminar on Hydropower Plants - Viennahydro 2024 , Vienna 2024-11-13 - 2024-11-15
  • Academic lecture
    Abregu Ochoa, Jim Furcio; Scheuer, Jonas; Satyal, Sajan; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2024) Evaluation of the jet distortion by sediment erosion in the needle in the Pelton turbines. Turbine Testing Laboratory, Kathmandu University Current Research In Hydropower Technologies, CRHT – XII , Dulikel, Nepal 2024-03-18 - 2024-03-18

2023

  • Academic lecture
    Kuhn, Wolf Ludwig; Dahlhaug, Ole Gunnar; Hihn, Jean-Yves; Solemslie, Bjørn Winther. (2023) Evaluating Natural Degassing in a River to create a Baseline for Comparison to Technical Degassing Methods. Kathmandu University Current Research In Hydropower Technologies, CRHT – XI , Dhulikhel 2023-03-27 - 2023-03-27
  • Academic lecture
    Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2023) Mitigation of artificial TDG supersaturation in rivers downstream hydropower plants. IAHR 40th IAHR World Congress , Vienna 2023-08-21 - 2023-08-25

2022

  • Academic lecture
    Kuhn, Wolf Ludwig; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2022) Desorption of air content gases from supersaturated water during sonication with low-frequency, high-power ultrasound. ESS 17th Meeting of the European Society of Sonochemistry , Jena 2022-08-28 - 2022-09-01
  • Poster
    Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2022) Studying the degassing effect of power ultrasound on air-supersaturated, flowing water. ESS 17th Meeting of the European Society of Sonochemistry , Jena 2022-08-28 - 2022-09-01
  • Poster
    Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2022) Degassing air-supersaturated, flowing water. Energi Norge Produksjonsteknisk konferanse 2022 , Oslo 2022-03-08 - 2022-03-10
  • Lecture
    Harby, Atle; Dahlhaug, Ole Gunnar. (2022) Videreutvikling av vannkraften. NTNU og SINTEF Møte mellom NTNU/SINTEF og Energikommisjonen , Trondheim 2022-06-15 - 2022-06-15
  • Academic lecture
    Hultgreen, Liv Randi; Dahlhaug, Ole Gunnar. (2022) Growing x-disciplinary teamwork across established organizations and silo mentalities. NTNU Interdisciplinary teamwork skills for the 21st century , Trondheim, Norway 2022-06-16 - 2022-06-17

2021

  • Academic lecture
    Solemslie, Bjørn Winther; Sigurdsson, Bjarki; Dahlhaug, Ole Gunnar; Tengs, Erik Os. (2021) Modal Testing of the Francis-99 Runner. 30th IAHR Symposium on Hydraulic Machinery and System 2021-03-22 - 2021-03-25

2019

  • Academic lecture
    Vereide, Kaspar; Lia, Leif; Dahlhaug, Ole Gunnar; Mo, Birger; Nysveen, Arne; Forseth, Torbjørn. (2019) Research on Extreme Upgrading of Existing Hydropower Systems. AquaMedia Hydro2019 , Porto 2019-10-14 - 2019-10-16

2018

  • Academic lecture
    Dahlhaug, Ole Gunnar. (2018) Model test of hydro turbines. International Centre for Hydropower, ICH Advancement in turbine and hydropower technology , Kathmandu University 2018-03-21 - 2018-03-21
  • Popular scientific lecture
    Dahlhaug, Ole Gunnar; Holst, Martin a.; Fjærvold, Kjell-Tore. (2018) Høytrykks Francishjul som ikke sprekker. Energi Norge Produksjonsteknisk Konferanse, PTK 2018 , Trondheim 2018-03-05 - 2018-03-07
  • Academic lecture
    Selvig, M. J.; Dahlhaug, Ole Gunnar; Trivedi, Chirag. (2018) Pressure pulsations in high head Francis turbines. Kathmandu University Current Research in Hydraulic Turbines , Kathmandu 2018-03-20 - 2018-03-20
  • Lecture
    Silva, Ana T.; Dahlhaug, Ole Gunnar. (2018) Fish and turbines – same, same but different?. NINA Fagdag for Forskere i HydroCen , NINA-huset 2018-10-24 - 2018-10-24
  • Lecture
    Dahlhaug, Ole Gunnar. (2018) Hydropower’s unique flexibility. Kathmandu University Current Research in Hydraulic Turbines (CRHT-VIII-2018) , Kathmandu University 2018-03-20 - 2018-03-20
  • Academic lecture
    Agnalt, Einar; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2018) Onboard measurements of pressure pulsations in a high head Francis model runner. Turbomachinery Society of Japan 29th Symposium on Hydraulic Machinery and Systems , Doshisha University, Kyoto 2018-09-16 - 2018-09-21
  • Academic lecture
    Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2018) An Experimental Investigation of the Hydroynamic Damping of Vibrating Hydrofoils. Turbomachinery Society of Japan 29th Symposium on Hydraulic Machinery and Systems , Doshisha University, Kyoto 2018-09-16 - 2018-09-21
  • Academic lecture
    Solemslie, Bjørn Winther; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Pressure Pulsations and Fatigue Loads in High Head Francis Turbines. Turbomachinery Society of Japan 29th Symposium on Hydraulic Machinery and Systems , Doshisha University, Kyoto 2018-09-16 - 2018-09-21
  • Academic lecture
    Iliev, Igor; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Variable-speed operation and pressure pulsations in a Francis turbine and a pump-turbine. IAHR Symposium on Hydraulic Machinery and Systems, IAHR-2018 , Kyoto 2018-09-16 - 2018-09-21
  • Academic lecture
    Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2018) Signature analysis of characteristic frequencies in a Francis turbine. IAHR Symposium on Hydraulic Machinery and Systems, IAHR-2018 , Kyoto 2018-09-16 - 2018-09-21
  • Academic lecture
    Volent, Eirik; Dahlhaug, Ole Gunnar; Tengs, Erik Os. (2018) Study of flow structure in erosion prone complex geometries. IAHR 29th IAHR Symposium on Hydraulic Machinery and Systems , Kyoto 2018-09-16 - 2018-09-21

2017

  • Lecture
    Nysveen, Arne; Dahlhaug, Ole Gunnar. (2017) Bruk av variabelt turtall i norske kraftverk. Elektrisk utrustning og nettintegrasjon Turbinteknologi . Energi Norge Produksjonsteknisk konferanse (PTK 2017) , Stavanger 2017-03-06 - 2017-03-08
  • Academic lecture
    Leonhardsen, Sondre; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2017) Numerical Investigation of Flow Field subject to Vibrating structure. Kathmandu University International Symposium on Current Research in Hydraulic Turbines , Dhulikhel, Nepal 2017-04-04 - 2017-04-04
  • Popular scientific lecture
    Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Dagsvik, Helene Njølstad. (2017) Pågående forskningsaktivitet ved Vannkraftlaboratoriet. Peltonturbiner, Pumpeturbiner, Francisturbiner og andre eksterne oppdrag. Bransjebesøk på Vannkraftlaboratoriet 2017-12-08 - 2017-12-08

2016

  • Academic lecture
    Bergan, Carl Werdelin; Goyal, Rahul; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2016) Steady velocity and pressure measurements of a high-head Francis model turbine. 28th IAHR symposium on Hydraulic Machinery and Systems , Grenoble 2016-07-04 - 2016-07-08
  • Academic lecture
    Dahlhaug, Ole Gunnar. (2016) Development of global hydropower, the Norwegian perspective. Kathmandu University 6th International symposium on Current Research in Hydraulic Turbines , Dhulikhel, Nepal 2016-03-14 - 2016-03-14
  • Academic lecture
    Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2016) A reference Pelton turbine - High speed visualization in the rotating frame. 28th IAHR symposium on Hydraulic Machinery and Systems , Grenoble 2016-07-04 - 2016-07-08

2014

  • Academic lecture
    Sundström, Joel; Amiri, Kaveh; Bergan, Carl Werdelin; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2014) LDA measurements in the Francis-99 draft tube cone. IAHR 27th IAHR Symposium on Hydraulic Machinery and Systems, IAHR , Montreal 2014-09-22 - 2014-09-26
  • Academic lecture
    Bergan, Carl Werdelin; Amiri, Kaveh; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2014) Preliminary Measurements of the Radial Velocity in the Francis-99 Draft Tube Cone. NTNU Francis-99 Workshop 1: steady operation of Francis turbines , Trondheim 2014-12-15 - 2014-12-16
  • Academic lecture
    Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2014) A reference pelton turbine - design and efficiency measurements. Organizing Committee of the 27th IAHR Symposium 27th IAHR Symposium on Hydraulic Machinery and Systems , Montreal 2014-09-22 - 2014-09-26
  • Interview
    Bazilchuk, Nancy Reney; Tomasgard, Asgeir; Müller, Daniel Beat; Hertwich, Edgar G.; Dahlhaug, Ole Gunnar; Quale, Sverre. (2014) Her er klimaforskernes råd. forskning.no forskning.no [Internet] 2014-04-13
  • Interview
    Tomasgard, Asgeir; Müller, Daniel Beat; Hertwich, Edgar G.; Dahlhaug, Ole Gunnar; Quale, Sverre; Undeland, Tore Marvin. (2014) Her er klimaforskernes råd. Gemini.no Gemini.no [Internet] 2014-04-13
  • Interview
    Snøfugl, Ingvil; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar; Lia, Leif. (2014) Nytt vannkraftsenter skal lokke ungdom vekk fra oljebransjen. Teknisk Ukeblad nettavis Teknisk Ukeblad nettavis [Internet] 2014-02-10

2012

  • Academic lecture
    Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2012) A Reference Pelton Turbine Design. Technoport Technoport 2012 - Sharing Possibilities - RERC , Trondheim 2012-04-16 - 2012-04-18
  • Academic lecture
    Eltvik, Mette; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Gjøsæter, Kristine. (2012) Numerical analysis of effect of design parameters and sediment erosion on a Francis runner. Hydropower & Dam 4th International Conference on Water Resources and Renewable Energy Development in Asia , Chiang Mai 2012-04-26 - 2012-04-27
  • Academic lecture
    Thapa, Biraj Singh; Thapa, Bhola; Eltvik, Mette; Dahlhaug, Ole Gunnar; Gjøsæter, Kristine. (2012) Optimizing runner blade profile of Francis turbine to minimize sediment erosion. IAHR 26th IAHR Symposium on Hydraulic Machinery and Systems , Beijing 2012-08-19 - 2012-08-23
  • Academic lecture
    Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Eltvik, Mette; Thapa, Bhola; Gjøsæter, Kristine. (2012) Design Optimization of Francis Runners for Sediment Handling. Hydropower & Dam 4th International Conference on Water Resources and Renewable Energy Development in Asia , Chiang Mai 2012-04-26 - 2012-04-27
  • Academic lecture
    Thapa, Biraj Singh; Eltvik, Mette; Dahlhaug, Ole Gunnar; Thapa, Bhola; Gjøsæter, Kristine. (2012) Effects of turbine design parameters on sediment erosion of Francis runner. ICDRET 2nd International Conference on the Developments in Renewable Energy Technology , Dhaka 2012-01-05 - 2012-01-07
  • Lecture
    Thapa, Bhola; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Shrestha, Krishna Prasad. (2012) Accelerated testing for resistance to sand erosion in hydraulic turbines. Hydropower & Dams Fourth International Conference on Water Resources and Renewable Energy Development in Asia , Chiang Mai 2012-03-26 - 2012-03-27
  • Academic lecture
    Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2012) A Reference Pelton Turbine Design. Department of Thermal Engineering, Tsinghua University 26th IAHR Symposium on Hydraulic Machinery and Systems , Beijing 2012-10-19 - 2012-10-23

2011

  • Academic lecture
    Frøyd, Lars; Dahlhaug, Ole Gunnar; Hansen, Morten Hartvig. (2011) Prediction of flutter speed on a 10 MW wind turbine. European Wind Energy Association EWEA Offshore 2011 , Amsterdam 2011-11-29 - 2011-12-01
  • Academic lecture
    Eltvik, Mette; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2011) Prediction of Sediment Erosion in Francis Turbines. IAHR Cavitation and Dynamic problems in Hydraulic Machinery and Systems , Beograd 2011-10-26 - 2011-10-28

2010

  • Academic lecture
    Ramdal, Jørgen; Jonsson, Pontus P.; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2010) Uncertainties for Pressure-Time Efficiency Measurements. Indian Institute of Technology International Group for Hydraulic Efficiency Measurements , Roorkee 2010-10-21 - 2010-10-23
  • Academic lecture
    Jonsson, Pontus P.; Ramdal, Jørgen; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2010) The Pressure-Time measurements project at LTU and NTNU. Indian Institute of Technology / IGHEM International Group for Hydraulic Efficiency Measurements , Roorkee 2010-10-21 - 2010-10-23
  • Academic lecture
    Kobro, Einar; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar. (2010) Data Analysis From Onboard Francis Model Runner Pressure Measurements. University of Tokyo, Japan The 13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery , Honolulu, Hawaii 2010-04-04 - 2010-04-09
  • Academic lecture
    Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Eltvik, Mette. (2010) Numerical prediction of particle shape factor effect on sediment erosion in Francis turbine blades. International Centre for Hydropower, ICH Hydropower’10, 6th International Conference on Hydropower , Tromsø 2010-02-01 - 2010-02-03
  • Academic lecture
    Dahlhaug, Ole Gunnar; Skåre, Per Egil. (2010) Sediment resistive Francis runner at Cahua Power Plant. International Centre for Hydropower, ICH Hydropower’10, 6th International Conference on Hydropower , Trømsø 2010-02-01 - 2010-02-03
  • Academic lecture
    Thapa, Bhola; Dahlhaug, Ole Gunnar; Shrestha, Raju. (2010) Turbine laboratory at Kathmandu University for development of alternative energy in Nepal. International Centre for Hydropower, ICH Hydropower’10, 6th International Conference on Hydropower , Tromsø 2010-02-01 - 2010-02-03
  • Academic lecture
    Ramdal, Jørgen; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar. (2010) UNCERTAINTY AND PERFORMANCE OF A LOW HEAD THERMODYNAMIC MEASUREMENT. Indian Institute of Technology / IGHEM International Group for Hydraulic Efficiency Measurements , Roorkee 2010-10-21 - 2010-10-23
  • Popular scientific lecture
    Dahlhaug, Ole Gunnar. (2010) Potential top-mass reduction by hydraulic transmission. SINTEF Wind Power R&D seminar , Trondheim 2010-01-21 - 2010-01-22
  • Popular scientific lecture
    Dahlhaug, Ole Gunnar; Fjærvold, Kjell Tore. (2010) FoU ved Vannkraftlaboratoriet. Energi Norge Produksjonsteknisk Konferanse 2010 , Gardemoen 2010-03-08 - 2010-03-10
  • Popular scientific lecture
    Dahlhaug, Ole Gunnar. (2010) Development of a horizontal axis tidal turbine. Uppsala Universitet Innledning før forsvar av Lisensiatgrad for Emilia Lalander , Uppsala 2010-01-29 - 2010-01-29

2009

  • Academic lecture
    Dahlhaug, Ole Gunnar. (2009) Development of a sediment resistive Francis runner. The International Journal on Hydropower & Dams Hydro 2009 , Lyon 2009-10-26 - 2009-10-28

2008

  • Academic lecture
    Kobro, Einar; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2008) Onboard Pressure Measurement In Francis Model Runner Blades. IAHR 24th IAHR Symposium on Hydraulic Machinery and Systems , Foz do Iguazzu 2008-10-27 - 2008-10-31
  • Academic lecture
    Ramdal, Jørgen; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar. (2008) Decreasing uncertainty in thermodynamic measurement. IAHR IAHR Symposium on Hydraulic Machinery and systems , Foz do Iguassu, Brazil 2008-10-27 - 2008-10-31

2007

  • Academic lecture
    Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2007) Alternative design of a francis turbine for sand laden waters. International Centre for Hydropower, ICH International Conference on small hydropower , Kandy 2007-10-22 - 2007-10-24
  • Academic lecture
    Thapa, Bhola; Chaudhary, Pralhad; Dahlhaug, Ole Gunnar; Upadhyay, Piyusch. (2007) Study of combined effect of sand erosion and cavitation in hydraulic turbines. International Centre for Hydropower, ICH International conference on small hydropower , Kandy 2007-10-22 - 2007-10-24
  • Popular scientific lecture
    Dahlhaug, Ole Gunnar. (2007) Hydraulisk Gir til Vindturbiner. SINTEF Energiforskning Vindkraft FoU Seminar - Vinn eller Forsvinn! , Trondheim 2007-01-25 - 2007-01-26

2006

  • Academic lecture
    Antonsen, Øyvind; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar. (2006) Experimental and Theoretical Investigations of the Flow Field at the Inlet of a Francis Runner. HCI-Publication HydroVision 2006 , Portland, Oregon 2006-08-01 - 2006-08-04
  • Academic lecture
    Kjeldsen, Morten; Olsen, Knut Magne; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar. (2006) Water injection for the mitigation of draft tube pressure pulsations. IAHR IAHR Int. Meeting on Cavitation and Dynamic Problems , Barcelona 2006-06-28 - 2006-06-30
  • Academic lecture
    Antonsen, Øyvind; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar; Billdal, Jan Tore. (2006) Pressure pulses in Francis Turbines vs. guide vane design. The Int. Association of Hydraulic Engineering and Research 23rd IAHR Symposium on Hydraulic Machinery and Systems , Yokohama 2006-10-17 - 2006-10-21
  • Academic lecture
    Hulaas, Harald; Dahlhaug, Ole Gunnar. (2006) Uncertainty analysis of Pressure-Time measurement. The International Group for Hydraulic Efficiency Measurement IGHEM 2006 , Portland, Oregon 2006-07-30 - 2006-08-01
  • Academic lecture
    Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian; Brandåstrø, Bård Aslak; Francke, Håkon Hjort; Hulaas, Harald. (2006) Comparison between pressure-time and thermodynamic efficiency measurements on a low head turbine. The International Group for Hydraulic Efficiency Measurement IGHEM 2006 , Portland, Oregon 2006-07-30 - 2006-08-01
  • Academic lecture
    Dahlhaug, Ole Gunnar; Kobro, Einar; Skåre, Per Egil; Nielsen, Torbjørn Kristian; Thapa, Bhola. (2006) Efficiency loss in Pelton buckets due to sediment erosion. The Int. Association of Hydraulic Engineering and Research 23rd IAHR Symposium on Hydraulic Machinery and Systems , Yokohama 2006-10-17 - 2006-10-21
  • Academic lecture
    Bajracharya, Tri ratna; Joshi, C.B.; Thapa, Bhola; Saini, R.P.; Dahlhaug, Ole Gunnar. (2006) Correlation study on sand led erosion of buckets and efficiency losses in high head power plants. Institute of Engineering, Tribhuvan University Renewable energy technology for rural development , Kathmandu 2006-10-12 - 2006-10-14
  • Academic lecture
    Bajracharya, Tri ratna; Joshi, C.B.; Dahlhaug, Ole Gunnar; Saini, R.P.. (2006) Analysis of sand particles led damage of Pelton Turbines in Nepal. Institute for Waterpower and pumps, University of Vienna 14th Seminar on Hydropower Plants , Wien 2006-10-10 - 2006-10-12
  • Academic lecture
    Nielsen, Torbjørn Kristian; Røyrvik, Johnny; Ramdal, Jørgen; Dahlhaug, Ole Gunnar. (2006) Propeller turbine with two contra-rotating impellers and built in generators. IAHR 23th IAHR Symposium , Yokohama 2006-10-17 - 2006-10-20

2005

  • Academic lecture
    Dahlhaug, Ole Gunnar; Thapa, Bhola; Shrestha, Raju. (2005) Relation between surface roughness and erosion of hydraulic turbine components. India Hydro 2005 , New Dehli 2005-02-19 - 2005-02-21
  • Academic lecture
    Dahlhaug, Ole Gunnar; Thapa, Bhola; Nielsen, Torbjørn Kristian; Ruud, Jonas Jessen. (2005) Thermodynamic efficiency measurement of Khimti Hydropower Plant and assessment of sand erosion on turbine components. International Center for Hydropower, ICH Hydropwer �05, The Backbone of Sustainable Energy Supply. , Stavanger 2005-05-23 - 2005-05-25
  • Academic lecture
    Dahlhaug, Ole Gunnar; Thapa, Bhola; Shrestha, Raju. (2005) Investigation of erosion resistance of turbine steels and coating materials. 6th International Conference on Development of Hydropower, a Major Source of Renewable Energy , Kathmandu 2005-05-23 - 2005-05-25

2004

  • Academic lecture
    Dahlhaug, Ole Gunnar; Thapa, Bhola. (2004) Sand erosion in a Francis turbine. A case study from Jhimruk power plant, Nepal. IAHR 22nd IAHR symposium on Hydraulic Machinery and Systems , Stockholm 2004-06-29 - 2004-07-02
  • Academic lecture
    Dahlhaug, Ole Gunnar; Thapa, Bhola; Shrestha, Raju; Kaphle, Krishna. (2004) Sediments of Nepalese rivers with respect to sand erosion in hydraulic turbines. Internationlal symposium on river sedimentation Vitenskapelig konferanse , Yichang, Hubei province 2004-10-18 - 2004-10-21
  • Academic lecture
    Dahlhaug, Ole Gunnar; Thapa, Bhola; Shrestha, Raju. (2004) Sediments of Nepalese Rivers with respect to sand erosion in hydraulic turbine. Ninth International Symposium on River Sedimentation (9th ISRS) , Yichang, Hubei Province 2004-10-18 - 2004-10-21

2003

  • Academic lecture
    Dahlhaug, Ole Gunnar; Thapa, Bhola. (2003) Sand erosion in hydraulic turbines and wear rate measurement of turbine materials. ICH Hydro Africa 2003 , Arusha 2003-11-17 - 2003-11-19

2002

  • Academic lecture
    Brekke, Hermod; Dahlhaug, Ole Gunnar. (2002) Development of small simplified Francis Turbines. HydroVision 2002 , Portland, Oregon USA 2002-08-02 -

2001

  • Academic lecture
    Dahlhaug, Ole Gunnar; Skåre, Per Egil. (2001) CFD-calculation of a draft tube flow. Proceedings of Turbine-99 - W2 The second ERCOFTAC Workshop on Draft Tube Flow , Älvkarleby, Sweden 2001-06-20 -
  • Academic lecture
    Brekke, Hermod; Dahlhaug, Ole Gunnar. (2001) Design of Mini and Micro Turbines Versus Large Turbines. Hydro 2001 , Riva del Garda, Italia 2001-09-29 -

2000

  • Academic lecture
    Okulov, Valery L.; Dahlhaug, Ole Gunnar; Andersson, Helge Ingolf. (2000) Changes in the axial symmetry of the velocity field and in the helical symmetry of the vorticity field downstream of a bend and a diffuser. 4th EUROMECH European Fluid Mechanics Conference , Eindhoven, 19-23 November 2000
  • Poster
    Dahlhaug, Ole Gunnar; Brekke, Hermod. (2000) Technical and political issues for Small Hydro in Norway. HydroVision 2000, Conference Proceedings, August 8-11 2000, , Charlotte, North Carolina, USA 2000-08-11 -

1999

  • Academic lecture
    Dahlhaug, Ole Gunnar; Skåre, Per Egil; Kjeldsen, Morten. (1999) CFD CALCULATION OF A DRAFT TUBE FLOW. Turbine -99 , Pojus, Sweden 1999-06-23 -

1998

  • Academic lecture
    Dahlhaug, Ole Gunnar; Brekke, Hermod. (1998) A discussion on the influence of turbulent kinetic energy on hydraulic efficiency measurement. International Group for Hydraulic Efficiency Measurements, IGHEM, RENO '98 , Reno, Nevada, USA 1998-07-28 -
  • Academic lecture
    Brekke, Hermod; Dahlhaug, Ole Gunnar. (1998) Loss analysis and measuring uncertainties of the thermodynamic method for different turbinde types. IGHEM 98, USA , Reno, USA

1996

  • Academic lecture
    Dahlhaug, Ole Gunnar; Brekke, Hermod. (1996) Energy distribution at the draft tube outlet. IGHEM Seminar - Montreal '96 , Montreal, Canada 1996-06-28 -
  • Academic lecture
    Dahlhaug, Ole Gunnar. (1996) SWIRL FLOW IN CONICAL DIFFUSERS. XVIII IAHR Sumposium on Hydraulic Machinery and Cavitation , Valencia, Spain 1996-09-15 -

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