Location: R1 (view map)

Industrial experience and challenges associated with low & medium head hydropower machines in a new energy landscape
Carl-Maikel Högström & Jens Österud
Vattenfall R&D

Parallel 10a: Pump-turbines / Vortex breakdown
Session chair: Ole Gunnar Dahlhaug
Location: R1 (view map) - Hybrid session (virtual/physical)

10:20 - Manuscript id #87
A Simulation Study of Hydraulic Vibration caused by Clearance Flow in a Pump Turbine
Mr Ming Xia

10:40 - Manuscript id #113
Clearance effects on the flow characteristics in a high-head prototype pump-turbine during start-up in turbine mode
Mr Shaozheng Zhang

11:00 - Manuscript id #10
Draft tube guide vane system to mitigate pressure pulsations
Miss Jesline Joy

11:20 - Manuscript id #62
Local stability analysis of PIV data to identify the vortex rope in hydro turbine model
Dr Ivan Litvinov

11:40 - Manuscript id #147
Global linear stability analysis of the flow inside a conical draft tube
Mr Robert Mitruț

Parallel 11a: Hydraulic turbines
Session chair: Cécile Münch-Alligné
Location: R5 (view map)

10:20 - Manuscript id #94
Influence of axial water jet size on RVR mitigation in draft tube of Francis turbine
Mr Subodh Khullar

10:40 - Manuscript id #149
Experimental investigation of a free runner concept downstream of Francis turbines
Dr Alin Bosioc

11:00 - Manuscript id #101
Effects of cylindrical rods in a draft tube at part load operation in down-scale turbine
Mr Shahab Shiraghaee

11:20 - Manuscript id #111
AI-based approach to predict nozzle instability in Pelton turbine model test
Dr Loïc Andolfatto

Parallel 12a: Computational fluid dynamics and fluid structure interaction
Session chair: Alexandre Presas
Location: R9 (view map)

10:20 - Manuscript id #112
Numerical fatigue damage analysis of a variable speed Francis pump-turbine during start-up in generating mode
Mr Daniel Biner

10:40 - Manuscript id #122
Lattice Boltzmann simulation of the ERCOFTAC pump impeller
Prof Ernesto Casartelli

11:00 - Manuscript id #127
CFD and FEM analysis to migrate from fixed- to variable-speed on the Alto Lindoso HPP
Dr Olivier Pacot

11:20 - Manuscript id #129
Application of a coupled Reynolds stress model to a swirl-driven diffuser flow
Prof Ernesto Casartelli

11:40 - Manuscript id #134
Comparison of mechanical stress in Pelton Buckets between simulation and measurement
Dr Martin Rentschler

Parallel 10b: Computational fluid dynamics and fluid structure interaction / Smart grid and digital twin / Pump-turbines / Multiphase flow
Session chair: Elena Vagnoni
Location: R1 (view map) - Hybrid session (virtual/physical)

13:00 - Manuscript id #146
URANS numerical simulations of pulsating flows considering streamwise pressure gradient on asymmetric diffuser
Mr Ionuț Stelian Grecu

13:20 - Manuscript id #37
On the correlation between runner blade dynamic stresses and pressure fluctuations in a prototype Francis turbine
Dr Arthur Favrel

13:40 - Manuscript id #78
Fluid-structure coupling analysis of a pump-turbine unit during the pump shutdown transient process
Mr Qilian He

14:00 - Manuscript id #12
Mesh dependence analysis for simulating unsteady cavitation around a plane convex hydrofoil
Miss Diana Sofía Puga Gallegos

Parallel 11b: Hydraulic turbines / Measurement techniques and signal processing
Session chair: Chirag Trivedi
Location: R5 (view map)

13:00 - Manuscript id #117
Development of a novel cavitation monitoring system for hydro turbines based on machine learning algorithms
Dr Ali Amini

13:20 - Manuscript id #176
Measurement of sediment particle size distribution and shape using dynamic imaging analysis
Mr Naman Arora

Parallel 12b: Measurement techniques and signal processing / Computational fluid dynamics and fluid structure interaction / Hydraulic turbines
Session chair: Hari Prasad Neopane
Location: R9 (view map)

13:00 - Manuscript id #148
Artificial neural networks for predicting the onset of overload instability in Francis turbines
Dr Alexandre Presas

13:20 - Manuscript id #150
Effect of blade layout on performance of low specific speed pump operating in turbine mode
Dr David Štefan

13:40 - Manuscript id #173
Numerical design methodology for reversible Deriaz turbine with high energy performance and reduced fish impacts
Prof Ioannis Anagnostopoulos

14:00 - Manuscript id #53
Application of hydro-abrasive erosion model from IEC 62364:2019 standard in Francis turbines
Mr Nirmal Acharya

Location: R1 (view map)