Nicholas Worth
+4773593552
Strømningsteknisk, 308, Gløshaugen, Kolbjørn Hejes vei 2
About
My research is aimed at increasing our fundamental understanding of different fluid flows in order to better predict and control them. Currently I have a focus on thermoacoustic instabilities in gas turbine combustors, the small-scale structure of high Reynolds number turbulence, and the development of new experimental methods.
Publications
2024
-
Ånestad, Aksel;
Æsøy, Eirik;
Dawson, James;
Worth, Nicholas Alexander.
(2024)
Mitigating Thermoacoustic Instabilities in Premixed Hydrogen Flames using Axial Staging.
Proceedings of the Combustion Institute
Academic article
-
Hillestad, Johannes Næsset;
Yadala Venkata, Srikar;
Neunaber, Ingrid Johanne;
Li, Leon;
Hearst, Robert Jason;
Worth, Nicholas Alexander.
(2024)
Volumetric visualization of vanishing vortices in wind turbine wakes.
Physical Review Fluids
Academic article
-
Ahn, Byeonguk;
Nygård, Håkon Tormodsen;
Worth, Nicholas Alexander;
Yang, Zhijian;
Li, Larry.
(2024)
Longitudinal and azimuthal thermoacoustic modes in a pressurized annular combustor with bluff-body-stabilized methane-hydrogen flames.
Physical Review Fluids
Academic article
-
Su, Tong;
Xu, Boyan;
Bastiaans, Rob;
Worth, Nicholas Alexander.
(2024)
Lean Blow-Off Behaviour of Premixed Bluff-Body Stabilized Hydrocarbon-Air Flames and Ammonia/Hydrogen/Nitrogen-Air Flames.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Su, Tong;
Xu, Boyan;
Bastiaans, Rob;
Worth, Nicholas Alexander.
(2024)
The behaviour of NH<inf>3</inf>/H<inf>2</inf>/N<inf>2</inf>, CH<inf>4</inf> and C<inf>3</inf>H<inf>8</inf> turbulent premixed bluff-body stabilized flames near lean blow-off.
Proceedings of the Combustion Institute
Academic article
-
Su, Tong;
Xu, Boyan;
Bastiaans, Rob;
Worth, Nicholas Alexander.
(2024)
Lean Blow-Off Behaviour of Premixed Bluff-Body Stabilized Hydrocarbon-Air Flames and Ammonia/Hydrogen/Nitrogen-Air Flames.
The American Society of Mechanical Engineers (ASME)
Academic chapter/article/Conference paper
2023
-
Ånestad, Aksel;
Sampath, Ramgopal;
Moeck, Jonas;
Gruber, Andrea;
Worth, Nicholas Alexander.
(2023)
The Structure and Stability of Premixed CH<inf>4</inf>, H<inf>2</inf>, and NH<inf>3</inf>/H<inf>2</inf> Flames in an Axially Staged Can Combustor.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Nygård, Håkon Tormodsen;
Ghirardo, Giulio;
Worth, Nicholas Alexander.
(2023)
Saturation of flames to multiple inputs at one frequency.
Journal of Fluid Mechanics
Academic article
-
Ånestad, Aksel;
Sampath, Ramgopal;
Moeck, Jonas;
Gruber, Andrea;
Worth, Nicholas Alexander.
(2023)
THE STRUCTURE AND STABILITY OF PREMIXED CH4, H2, AND NH3/H2 FLAMES IN AN AXIALLY STAGED CAN COMBUSTOR.
The American Society of Mechanical Engineers (ASME)
Academic chapter/article/Conference paper
-
Govender, Dirren;
Liu, Hecong;
Peng, Fan;
Cai, Weiwei;
Worth, Nicholas Alexander.
(2023)
Tomographic reconstruction of an azimuthally forced flame in an annular chamber.
Proceedings of the Combustion Institute
Academic article
-
Vinnes, Magnus Kyrkjebø;
Worth, Nicholas Alexander;
Segalini, Antonio;
Hearst, Robert Jason.
(2023)
The flow in the induction and entrance regions of lab-scale wind farms.
Wind Energy
Academic article
-
Chen, Zhi X.;
Swaminathan, Nedunchezhian;
Mazur, Marek;
Worth, Nicholas Alexander;
Zhang, Guangyu;
Li, Lei.
(2023)
Numerical investigation of azimuthal thermoacoustic instability in a gas turbine model combustor.
Fuel
Academic article
2022
-
Govender, Dirren;
Wiseman, Samuel;
Dawson, James;
Worth, Nicholas.
(2022)
Large volume scanning laser induced fluorescence measurement of a bluff-body stabilised flame in an annular combustor.
Experiments in Fluids
Academic article
-
Buschmann, Philip Erik;
Worth, Nicholas;
Moeck, Jonas.
(2022)
Thermoacoustic oscillations in a can-annular model combustor with asymmetries in the can-to-can coupling.
Proceedings of the Combustion Institute
Academic article
-
Æsøy, Eirik;
Jankee, Girish Kumarsing;
Yadala, Srikar;
Worth, Nicholas;
Dawson, James.
(2022)
Suppression of self-excited thermoacoustic instabilities by convective-acoustic interference.
Proceedings of the Combustion Institute
Academic article
-
Ahn, Byeonguk;
Indlekofer, Thomas;
Dawson, James;
Worth, Nicholas.
(2022)
Heat release rate response of azimuthal thermoacoustic instabilities in a pressurized annular combustor with methane/hydrogen flames.
Combustion and Flame
Academic article
-
Kushwaha, Abhijit;
Worth, Nicholas;
Dawson, James;
Gupta, Vikrant;
Li, Larry.
(2022)
Asynchronous and synchronous quenching of a globally unstable jet via axisymmetry breaking.
Journal of Fluid Mechanics
Academic article
-
Ånestad, Aksel;
Ahn, Byeonguk;
Nygård, Håkon Tormodsen;
Worth, Nicholas.
(2022)
The Effect of Rectangular Confinement Aspect Ratio On the Flame Transfer Function of a Turbulent Swirling Flame.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Peng, Fan;
Liu, Hecong;
Zhao, Qin;
Worth, Nicholas;
Cai, Weiwei.
(2022)
Assessment of imaging models for volumetric tomography of fluid flows.
Measurement
Academic article
2021
-
Indlekofer, Thomas;
Ahn, Byeonguk;
Kwah, Yi Hao;
Wiseman, Samuel;
Mazur, Marek;
Dawson, James.
(2021)
The effect of hydrogen addition on the amplitude and harmonic response of azimuthal instabilities in a pressurized annular combustor.
Combustion and Flame
Academic article
-
Nygård, Håkon Tormodsen;
Ghirardo, Giulio;
Worth, Nicholas.
(2021)
Azimuthal flame response and symmetry breaking in a forced annular combustor.
Combustion and Flame
Academic article
-
Æsøy, Eirik;
Aguilar, Jose;
Bothien, Mirko R.;
Worth, Nicholas;
Dawson, James.
(2021)
Acoustic-Convective Interference in Transfer Functions of Methane/Hydrogen and Pure Hydrogen Flames.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Ahn, Byeonguk;
Indlekofer, Thomas;
Dawson, James;
Worth, Nicholas.
(2021)
Transient Thermo-Acoustic Responses of Methane/Hydrogen Flames in a Pressurized Annular Combustor.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Nygård, Håkon Tormodsen;
Worth, Nicholas.
(2021)
Flame transfer functions and dynamics of a closely confined premixed bluff body stabilized flame with swirl.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Æsøy, Eirik;
Nygård, Håkon Tormodsen;
Worth, Nicholas;
Dawson, James Richard.
(2021)
Tailoring the gain and phase of the flame transfer function through targeted convective-acoustic interference.
Combustion and Flame
Academic article
-
Æsøy, Eirik;
Aguilar, Jose;
Worth, Nicholas;
Dawson, James.
(2021)
The response of an axisymmetric jet placed at various positions in a standing wave.
Journal of Fluid Mechanics
Academic article
-
Helvig, Sanne de Jong;
Vinnes, Magnus Kyrkjebø;
Segalini, Antonio;
Worth, Nicholas;
Hearst, R. Jason.
(2021)
A comparison of lab-scale free rotating wind turbines and actuator disks.
Journal of Wind Engineering and Industrial Aerodynamics
Academic article
2020
-
Worth, Nicholas;
Mistry, Dhiren;
Berk, Tim;
Dawson, James.
(2020)
Vortex dynamics of a jet at the pressure node in a
standing wave.
Journal of Fluid Mechanics
Academic article
-
Æsøy, Eirik;
Aguilar, Jose;
Wiseman, Samuel;
Bothien, Mirko R.;
Worth, Nicholas;
Dawson, James.
(2020)
Scaling and prediction of transfer functions in lean premixed H2/CH4-flames.
Combustion and Flame
Academic article
-
Mazur, Marek;
Kwah, Yi Hao;
Indlekofer, Thomas;
Dawson, James;
Worth, Nicholas.
(2020)
Self-excited longitudinal and azimuthal modes in a pressurised annular combustor.
Proceedings of the Combustion Institute
Academic article
-
Ghirardo, Giulio;
Nygård, Håkon Tormodsen;
Cuquel, Alexis;
Worth, Nicholas.
(2020)
Symmetry breaking modelling for azimuthal combustion dynamics.
Proceedings of the Combustion Institute
Academic article
-
Knutsen, Anna Nina;
Baj, Pawel;
Lawson, John M;
Bodenschatz, Eberhard;
Dawson, James;
Worth, Nicholas.
(2020)
The inter-scale energy budget in a von Kármán mixing flow.
Journal of Fluid Mechanics
Academic article
2019
-
Mazur, Marek;
Nygård, Håkon Tormodsen;
Dawson, James;
Worth, Nicholas.
(2019)
Characteristics of self-excited spinning azimuthal modes in an annular combustor with turbulent premixed bluff-body flames.
Proceedings of the Combustion Institute
Academic article
-
Zettervall, Niklas;
Worth, Nicholas;
Mazur, Marek;
Dawson, James;
Fureby, Christer.
(2019)
Large eddy simulation of CH4-air and C2H4-air combustion in a model annular gas turbine combustor.
Proceedings of the Combustion Institute
Academic article
-
Nygård, Håkon Tormodsen;
Mazur, Marek;
Dawson, James;
Worth, Nicholas.
(2019)
Flame dynamics of azimuthal forced spinning and standing modes in an annular combustor.
Proceedings of the Combustion Institute
Academic article
-
Worth, Nicholas;
Dawson, James.
(2019)
Characterisation of flame surface annihilation events in self excited interacting flames.
Combustion and Flame
Academic article
-
Lawson, John M;
Bodenschatz, Eberhard;
Knutsen, Anna Nina;
Dawson, James;
Worth, Nicholas.
(2019)
Direct assessment of Kolmogorov's first refined similarity hypothesis.
Physical Review Fluids
Academic article
-
Kozul, Melissa;
Koothur, Vipin;
Worth, Nicholas;
Dawson, James.
(2019)
A scanning particle tracking velocimetry technique for high‑Reynolds
number turbulent flows.
Experiments in Fluids
Academic article
2017
-
Worth, Nicholas;
Dawson, J R.
(2017)
Effect of equivalence ratio on the modal dynamics of azimuthal combustion instabilities.
Proceedings of the Combustion Institute
Academic article
-
Worth, Nicholas;
Dawson, J R;
Sidey, Jenni Am;
Mastorakos, Epaminondas.
(2017)
Azimuthally forced flames in an annular combustor.
Proceedings of the Combustion Institute
Academic article
-
Knutsen, Anna Nina;
Lawson, John M;
Dawson, J R;
Worth, Nicholas.
(2017)
A laser sheet self-calibration method for scanning PIV.
Experiments in Fluids
Academic article
2016
-
Giusti, Andrea;
Worth, Nicholas;
Mastorakos, Epaminondas;
Dowling, Ann.
(2016)
Experimental and Numerical Investigation into the Propagation of Entropy Waves.
AIAA Journal
Academic article
2015
-
Bauerheim, M.;
Staffelbach, G.;
Worth, Nicholas;
Dawson, J R;
Gicquel, L.Y.M.;
Poinsot, T..
(2015)
Sensitivity of LES-based harmonic flame response model for turbulent swirled flames and impact on the stability of azimuthal modes.
Proceedings of the Combustion Institute
Academic article
-
Dawson, J R;
Worth, Nicholas.
(2015)
The effect of baffles on self-excited azimuthal modes in an annular combustor.
Proceedings of the Combustion Institute
Academic article
2014
-
Dawson, James;
Worth, Nicholas.
(2014)
Flame dynamics and unsteady heat release
rate of self-excited azimuthal modes in an annular combustor.
Combustion and Flame
Academic article
2013
-
Worth, Nicholas;
Dawson, James.
(2013)
Tomographic reconstruction of OH* chemiluminescence in two interacting turbulent flames.
Measurement Science and Technology
Academic article
-
Worth, Nicholas;
Dawson, James.
(2013)
Self-excited circumferential instabilities in a model annular gas turbine combustor: global flame dynamics.
Symposium, International, on combustion
Academic article
-
Worth, Nicholas;
Dawson, James.
(2013)
Modal dynamics of self-excited azimuthal instabilities in an annular combustion chamber.
Combustion and Flame
Academic article
2012
-
Aydemir, E.;
Worth, Nicholas;
Dawson, James.
(2012)
The formation of vortex rings in a strongly forced round jet.
Experiments in Fluids
Academic article
-
Worth, Nicholas;
Dawson, James.
(2012)
Cinematographic OH-PLIF measurements of two interacting turbulent premixed flames with and without acoustic forcing.
Combustion and Flame
Academic article
2011
-
Worth, Nicholas;
Nickels, T. B..
(2011)
Time-resolved volumetric measurement of fine-scale coherent structures in turbulence.
Physical Review E. Statistical, Nonlinear, and Soft Matter Physics
Academic article
-
Worth, Nicholas;
Nickels, T. B..
(2011)
Some characteristics of thin shear layers in homogeneous turbulent flow.
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Academic article
2010
-
Worth, Nicholas;
Nickels, Timothy;
Swarminathan, Nedunchezian.
(2010)
A tomographic PIV resolution study based on homogeneous isotropic turbulence DNS data.
Experiments in Fluids
Academic article
2008
-
Worth, Nicholas;
Nickels, Timothy.
(2008)
Acceleration of Tomo-PIV by estimating the initial volume intensity distribution.
Experiments in Fluids
Academic article
Journal publications
-
Ånestad, Aksel;
Æsøy, Eirik;
Dawson, James;
Worth, Nicholas Alexander.
(2024)
Mitigating Thermoacoustic Instabilities in Premixed Hydrogen Flames using Axial Staging.
Proceedings of the Combustion Institute
Academic article
-
Hillestad, Johannes Næsset;
Yadala Venkata, Srikar;
Neunaber, Ingrid Johanne;
Li, Leon;
Hearst, Robert Jason;
Worth, Nicholas Alexander.
(2024)
Volumetric visualization of vanishing vortices in wind turbine wakes.
Physical Review Fluids
Academic article
-
Ahn, Byeonguk;
Nygård, Håkon Tormodsen;
Worth, Nicholas Alexander;
Yang, Zhijian;
Li, Larry.
(2024)
Longitudinal and azimuthal thermoacoustic modes in a pressurized annular combustor with bluff-body-stabilized methane-hydrogen flames.
Physical Review Fluids
Academic article
-
Su, Tong;
Xu, Boyan;
Bastiaans, Rob;
Worth, Nicholas Alexander.
(2024)
Lean Blow-Off Behaviour of Premixed Bluff-Body Stabilized Hydrocarbon-Air Flames and Ammonia/Hydrogen/Nitrogen-Air Flames.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Su, Tong;
Xu, Boyan;
Bastiaans, Rob;
Worth, Nicholas Alexander.
(2024)
The behaviour of NH<inf>3</inf>/H<inf>2</inf>/N<inf>2</inf>, CH<inf>4</inf> and C<inf>3</inf>H<inf>8</inf> turbulent premixed bluff-body stabilized flames near lean blow-off.
Proceedings of the Combustion Institute
Academic article
-
Ånestad, Aksel;
Sampath, Ramgopal;
Moeck, Jonas;
Gruber, Andrea;
Worth, Nicholas Alexander.
(2023)
The Structure and Stability of Premixed CH<inf>4</inf>, H<inf>2</inf>, and NH<inf>3</inf>/H<inf>2</inf> Flames in an Axially Staged Can Combustor.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Nygård, Håkon Tormodsen;
Ghirardo, Giulio;
Worth, Nicholas Alexander.
(2023)
Saturation of flames to multiple inputs at one frequency.
Journal of Fluid Mechanics
Academic article
-
Govender, Dirren;
Liu, Hecong;
Peng, Fan;
Cai, Weiwei;
Worth, Nicholas Alexander.
(2023)
Tomographic reconstruction of an azimuthally forced flame in an annular chamber.
Proceedings of the Combustion Institute
Academic article
-
Vinnes, Magnus Kyrkjebø;
Worth, Nicholas Alexander;
Segalini, Antonio;
Hearst, Robert Jason.
(2023)
The flow in the induction and entrance regions of lab-scale wind farms.
Wind Energy
Academic article
-
Chen, Zhi X.;
Swaminathan, Nedunchezhian;
Mazur, Marek;
Worth, Nicholas Alexander;
Zhang, Guangyu;
Li, Lei.
(2023)
Numerical investigation of azimuthal thermoacoustic instability in a gas turbine model combustor.
Fuel
Academic article
-
Govender, Dirren;
Wiseman, Samuel;
Dawson, James;
Worth, Nicholas.
(2022)
Large volume scanning laser induced fluorescence measurement of a bluff-body stabilised flame in an annular combustor.
Experiments in Fluids
Academic article
-
Buschmann, Philip Erik;
Worth, Nicholas;
Moeck, Jonas.
(2022)
Thermoacoustic oscillations in a can-annular model combustor with asymmetries in the can-to-can coupling.
Proceedings of the Combustion Institute
Academic article
-
Æsøy, Eirik;
Jankee, Girish Kumarsing;
Yadala, Srikar;
Worth, Nicholas;
Dawson, James.
(2022)
Suppression of self-excited thermoacoustic instabilities by convective-acoustic interference.
Proceedings of the Combustion Institute
Academic article
-
Ahn, Byeonguk;
Indlekofer, Thomas;
Dawson, James;
Worth, Nicholas.
(2022)
Heat release rate response of azimuthal thermoacoustic instabilities in a pressurized annular combustor with methane/hydrogen flames.
Combustion and Flame
Academic article
-
Kushwaha, Abhijit;
Worth, Nicholas;
Dawson, James;
Gupta, Vikrant;
Li, Larry.
(2022)
Asynchronous and synchronous quenching of a globally unstable jet via axisymmetry breaking.
Journal of Fluid Mechanics
Academic article
-
Ånestad, Aksel;
Ahn, Byeonguk;
Nygård, Håkon Tormodsen;
Worth, Nicholas.
(2022)
The Effect of Rectangular Confinement Aspect Ratio On the Flame Transfer Function of a Turbulent Swirling Flame.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Peng, Fan;
Liu, Hecong;
Zhao, Qin;
Worth, Nicholas;
Cai, Weiwei.
(2022)
Assessment of imaging models for volumetric tomography of fluid flows.
Measurement
Academic article
-
Indlekofer, Thomas;
Ahn, Byeonguk;
Kwah, Yi Hao;
Wiseman, Samuel;
Mazur, Marek;
Dawson, James.
(2021)
The effect of hydrogen addition on the amplitude and harmonic response of azimuthal instabilities in a pressurized annular combustor.
Combustion and Flame
Academic article
-
Nygård, Håkon Tormodsen;
Ghirardo, Giulio;
Worth, Nicholas.
(2021)
Azimuthal flame response and symmetry breaking in a forced annular combustor.
Combustion and Flame
Academic article
-
Æsøy, Eirik;
Aguilar, Jose;
Bothien, Mirko R.;
Worth, Nicholas;
Dawson, James.
(2021)
Acoustic-Convective Interference in Transfer Functions of Methane/Hydrogen and Pure Hydrogen Flames.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Ahn, Byeonguk;
Indlekofer, Thomas;
Dawson, James;
Worth, Nicholas.
(2021)
Transient Thermo-Acoustic Responses of Methane/Hydrogen Flames in a Pressurized Annular Combustor.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Nygård, Håkon Tormodsen;
Worth, Nicholas.
(2021)
Flame transfer functions and dynamics of a closely confined premixed bluff body stabilized flame with swirl.
Journal of Engineering For Gas Turbines and Power
Academic article
-
Æsøy, Eirik;
Nygård, Håkon Tormodsen;
Worth, Nicholas;
Dawson, James Richard.
(2021)
Tailoring the gain and phase of the flame transfer function through targeted convective-acoustic interference.
Combustion and Flame
Academic article
-
Æsøy, Eirik;
Aguilar, Jose;
Worth, Nicholas;
Dawson, James.
(2021)
The response of an axisymmetric jet placed at various positions in a standing wave.
Journal of Fluid Mechanics
Academic article
-
Helvig, Sanne de Jong;
Vinnes, Magnus Kyrkjebø;
Segalini, Antonio;
Worth, Nicholas;
Hearst, R. Jason.
(2021)
A comparison of lab-scale free rotating wind turbines and actuator disks.
Journal of Wind Engineering and Industrial Aerodynamics
Academic article
-
Worth, Nicholas;
Mistry, Dhiren;
Berk, Tim;
Dawson, James.
(2020)
Vortex dynamics of a jet at the pressure node in a
standing wave.
Journal of Fluid Mechanics
Academic article
-
Æsøy, Eirik;
Aguilar, Jose;
Wiseman, Samuel;
Bothien, Mirko R.;
Worth, Nicholas;
Dawson, James.
(2020)
Scaling and prediction of transfer functions in lean premixed H2/CH4-flames.
Combustion and Flame
Academic article
-
Mazur, Marek;
Kwah, Yi Hao;
Indlekofer, Thomas;
Dawson, James;
Worth, Nicholas.
(2020)
Self-excited longitudinal and azimuthal modes in a pressurised annular combustor.
Proceedings of the Combustion Institute
Academic article
-
Ghirardo, Giulio;
Nygård, Håkon Tormodsen;
Cuquel, Alexis;
Worth, Nicholas.
(2020)
Symmetry breaking modelling for azimuthal combustion dynamics.
Proceedings of the Combustion Institute
Academic article
-
Knutsen, Anna Nina;
Baj, Pawel;
Lawson, John M;
Bodenschatz, Eberhard;
Dawson, James;
Worth, Nicholas.
(2020)
The inter-scale energy budget in a von Kármán mixing flow.
Journal of Fluid Mechanics
Academic article
-
Mazur, Marek;
Nygård, Håkon Tormodsen;
Dawson, James;
Worth, Nicholas.
(2019)
Characteristics of self-excited spinning azimuthal modes in an annular combustor with turbulent premixed bluff-body flames.
Proceedings of the Combustion Institute
Academic article
-
Zettervall, Niklas;
Worth, Nicholas;
Mazur, Marek;
Dawson, James;
Fureby, Christer.
(2019)
Large eddy simulation of CH4-air and C2H4-air combustion in a model annular gas turbine combustor.
Proceedings of the Combustion Institute
Academic article
-
Nygård, Håkon Tormodsen;
Mazur, Marek;
Dawson, James;
Worth, Nicholas.
(2019)
Flame dynamics of azimuthal forced spinning and standing modes in an annular combustor.
Proceedings of the Combustion Institute
Academic article
-
Worth, Nicholas;
Dawson, James.
(2019)
Characterisation of flame surface annihilation events in self excited interacting flames.
Combustion and Flame
Academic article
-
Lawson, John M;
Bodenschatz, Eberhard;
Knutsen, Anna Nina;
Dawson, James;
Worth, Nicholas.
(2019)
Direct assessment of Kolmogorov's first refined similarity hypothesis.
Physical Review Fluids
Academic article
-
Kozul, Melissa;
Koothur, Vipin;
Worth, Nicholas;
Dawson, James.
(2019)
A scanning particle tracking velocimetry technique for high‑Reynolds
number turbulent flows.
Experiments in Fluids
Academic article
-
Worth, Nicholas;
Dawson, J R.
(2017)
Effect of equivalence ratio on the modal dynamics of azimuthal combustion instabilities.
Proceedings of the Combustion Institute
Academic article
-
Worth, Nicholas;
Dawson, J R;
Sidey, Jenni Am;
Mastorakos, Epaminondas.
(2017)
Azimuthally forced flames in an annular combustor.
Proceedings of the Combustion Institute
Academic article
-
Knutsen, Anna Nina;
Lawson, John M;
Dawson, J R;
Worth, Nicholas.
(2017)
A laser sheet self-calibration method for scanning PIV.
Experiments in Fluids
Academic article
-
Giusti, Andrea;
Worth, Nicholas;
Mastorakos, Epaminondas;
Dowling, Ann.
(2016)
Experimental and Numerical Investigation into the Propagation of Entropy Waves.
AIAA Journal
Academic article
-
Bauerheim, M.;
Staffelbach, G.;
Worth, Nicholas;
Dawson, J R;
Gicquel, L.Y.M.;
Poinsot, T..
(2015)
Sensitivity of LES-based harmonic flame response model for turbulent swirled flames and impact on the stability of azimuthal modes.
Proceedings of the Combustion Institute
Academic article
-
Dawson, J R;
Worth, Nicholas.
(2015)
The effect of baffles on self-excited azimuthal modes in an annular combustor.
Proceedings of the Combustion Institute
Academic article
-
Dawson, James;
Worth, Nicholas.
(2014)
Flame dynamics and unsteady heat release
rate of self-excited azimuthal modes in an annular combustor.
Combustion and Flame
Academic article
-
Worth, Nicholas;
Dawson, James.
(2013)
Tomographic reconstruction of OH* chemiluminescence in two interacting turbulent flames.
Measurement Science and Technology
Academic article
-
Worth, Nicholas;
Dawson, James.
(2013)
Self-excited circumferential instabilities in a model annular gas turbine combustor: global flame dynamics.
Symposium, International, on combustion
Academic article
-
Worth, Nicholas;
Dawson, James.
(2013)
Modal dynamics of self-excited azimuthal instabilities in an annular combustion chamber.
Combustion and Flame
Academic article
-
Aydemir, E.;
Worth, Nicholas;
Dawson, James.
(2012)
The formation of vortex rings in a strongly forced round jet.
Experiments in Fluids
Academic article
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Worth, Nicholas;
Dawson, James.
(2012)
Cinematographic OH-PLIF measurements of two interacting turbulent premixed flames with and without acoustic forcing.
Combustion and Flame
Academic article
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Worth, Nicholas;
Nickels, T. B..
(2011)
Time-resolved volumetric measurement of fine-scale coherent structures in turbulence.
Physical Review E. Statistical, Nonlinear, and Soft Matter Physics
Academic article
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Worth, Nicholas;
Nickels, T. B..
(2011)
Some characteristics of thin shear layers in homogeneous turbulent flow.
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Academic article
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Worth, Nicholas;
Nickels, Timothy;
Swarminathan, Nedunchezian.
(2010)
A tomographic PIV resolution study based on homogeneous isotropic turbulence DNS data.
Experiments in Fluids
Academic article
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Worth, Nicholas;
Nickels, Timothy.
(2008)
Acceleration of Tomo-PIV by estimating the initial volume intensity distribution.
Experiments in Fluids
Academic article
Part of book/report
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Su, Tong;
Xu, Boyan;
Bastiaans, Rob;
Worth, Nicholas Alexander.
(2024)
Lean Blow-Off Behaviour of Premixed Bluff-Body Stabilized Hydrocarbon-Air Flames and Ammonia/Hydrogen/Nitrogen-Air Flames.
The American Society of Mechanical Engineers (ASME)
Academic chapter/article/Conference paper
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Ånestad, Aksel;
Sampath, Ramgopal;
Moeck, Jonas;
Gruber, Andrea;
Worth, Nicholas Alexander.
(2023)
THE STRUCTURE AND STABILITY OF PREMIXED CH4, H2, AND NH3/H2 FLAMES IN AN AXIALLY STAGED CAN COMBUSTOR.
The American Society of Mechanical Engineers (ASME)
Academic chapter/article/Conference paper
Teaching
Courses
Outreach
2024
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Academic lectureÅnestad, Aksel; Æsøy, Eirik; Dawson, James Richard; Worth, Nicholas Alexander. (2024) Mitigating Thermoacoustic Instabilities in Premixed Hydrogen Flames using Axial Staging. The Combustion Institute 40th International Symposium on Combustion , Milano 2024-07-21 - 2024-07-26
2023
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Academic lectureÅnestad, Aksel; Sampath, Ramgopal; Moeck, Jonas; Worth, Nicholas Alexander. (2023) The Effect of Second Stage H2 Addition on the Stability of an Axially Staged Can Combustor. ETH Symposium on Thermoacoustics in Combustion (SoTiC) , Zurich 2023-09-11 - 2023-09-14
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LectureAhn, Byeonguk; Nygård, Håkon Tormodsen; Li, Larry; Worth, Nicholas Alexander. (2023) Flame Dynamics in a Pressurised Annular Combustor with Simultaneous Longitudinal-Azimuthal Thermoacoustic Modes . Combustion Institute 14th Asia-Pacific Conference on Combustion , Kaohsiung Exhibition Center, Kaohsiung, Taiwan 2023-05-14 - 2023-05-18
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Academic lectureÅnestad, Aksel; Sampath, Ramgopal; Moeck, Jonas; Gruber, Andrea; Worth, Nicholas Alexander. (2023) The Structure of CH4, H2 and NH3/H2 Flames in an Axially Staged Can Combustor. ASME ASME Turbo Expo 2023 , Boston 2023-06-26 - 2023-06-30
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Academic lectureÅnestad, Aksel; Sampath, Ramgopal; Gruber, Andrea; Moeck, Jonas; Worth, Nicholas Alexander. (2023) The Structure and Stability of Premixed CH4, H2, and NH3/H2 Flames in an Axially Staged Can Combustor. ASME IGTI ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition , Boston, Massechusets, USA 2023-06-26 - 2023-06-30
2022
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Academic lectureÆsøy, Eirik; Jankee, Girish Kumarsing; Yadala Venkata, Srikar; Worth, Nicholas; Dawson, James Richard. (2022) Suppression of self-excited thermoacoustic instabilities by convective-acoustic interference. The Combustion Institute 39th International Symposium on Combustion , Vancouver 2022-07-24 - 2022-07-29
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Academic lectureYadala Venkata, Srikar; Jankee, Girish Kumarsing; Æsøy, Eirik; Dawson, James; Worth, Nicholas. (2022) INFLUENCE OF A CYLINDER INSTALLED UPSTREAM ON THE FLOW FIELD OF A TURBULENT JET . 12th International Symposium on Turbulence and Shear Flow Phenomena (TSFP12) 2022-07-19 - 2022-07-22
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Academic lectureÅnestad, Aksel; Ahn, Byeonguk; Nygård, Håkon Tormodsen; Worth, Nicholas. (2022) THE EFFECT OF RECTANGULAR CONFINEMENT ASPECT RATIO ON THE FLAME TRANSFER FUNCTION OF A TURBULENT SWIRLING FLAME. ASME ASME Turbo Expo 2022, Turbomachinery Technical Conference and Exposition , Rotterdam 2022-06-13 - 2022-06-17
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Academic lectureJankee, Girish Kumarsing; Yadala Venkata, Srikar; Æsøy, Eirik; Dawson, James; Worth, Nicholas. (2022) DATA-DRIVEN MODEL FOR VORTEX LOCK-IN OF CIRCULAR CYLINDERS IN AN ACOUSTICALLY-DRIVEN OSCILLATORY FLOW. 12th International Symposium on Turbulence and Shear Flow Phenomena 2022-07-19 - 2022-07-22
2021
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Academic lectureBuschmann, Philip Erik; Worth, Nicholas; Moeck, Jonas. (2021) Experimental study of thermoacoustic modes in a can-annular model combustor. TU Munich SOTIC - Symposium on thermoacoustics in combustion: Industry meets Academia , Munich 2021-09-06 - 2021-09-10
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Academic lectureÆsøy, Eirik; Aguilar, Jose; Bothien, Mirko R.; Worth, Nicholas; Dawson, James Richard. (2021) Acoustic-Convective Interference In Transfer Functions of Methane/Hydrogen and Pure Hydrogen Flames. ASME Turbo Expo: Power for Land, Sea, and Air , Online 2021-06-07 - 2021-06-11
2020
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Academic lectureNygård, Håkon Tormodsen; Worth, Nicholas. (2020) Flame Transfer Functions and Dynamics of a Closely Confined Premixed Bluff Body Stabilised Flame With Swirl. ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition , Virtual Online event 2020-09-21 - 2020-09-25
2018
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Academic lectureKushwaha, Abhijit; Mazur, Marek; Worth, Nicholas; Dawson, James; Li, Larry. (2018) Recurrence analysis of a globally unstable jet subjected to transverse acoustic forcing. APS DFD18 Meeting of The American Physical Society , Atlanta 2018-11-18 - 2018-11-20
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Academic lectureKnutsen, Anna Nina; Dawson, James; Baj, Pawel; Worth, Nicholas; Bodenschatz, Eberhard; Lawson, John M. (2018) An experimental investigation of the turbulent cascade in a von Kármán mixing tank. DFD18 Meeting of The American Physical Society 2018-11-18 - 2018-11-20
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Academic lectureKozul, Melissa; Koothur, Vipin; Worth, Nicholas; Dawson, James. (2018) A novel particle tracking technique using a scanning laser setup tested via numerical experiment. DFD18 Meeting of The American Physical Society , Atlanta 2018-11-18 - 2018-11-20
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Academic lectureKoothur, Vipin; Kozul, Melissa; Worth, Nicholas; Dawson, James. (2018) Introduction and Testing of a Novel Scanning Particle Tracking Velocimetry Technique. 19th International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics , Lisbon 2018-07-16 - 2018-07-19
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Academic lectureMazur, Marek; Nygård, Håkon Tormodsen; Dawson, James; Worth, Nicholas. (2018) Experimental Study of Damper Position on Instabilities in an Annular Combustor. ASME ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition , Oslo 2018-06-11 - 2018-06-15
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Academic lectureBaj, Pawel; Dawson, James; Worth, Nicholas; Lawson, John M; Bodenschatz, Eberhard. (2018) An investigation of the structure-conditioned turbulence kinetic energy budget. APS DFD18 Meeting of The American Physical Society , Atlanta 2018-11-18 - 2018-11-20
2017
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Academic lectureNygård, Håkon Tormodsen; Mazur, Marek; Dawson, J R; Worth, Nicholas. (2017) Azimuthally spinning wave modes and heat release in an annu- lar combustor. APS DFD17 Meeting of The American Physical Society , Colorado 2017-11-19 - 2017-11-21
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Academic lectureMistry, Dhiren; Hanssen-Bauer, Øyvind Waage; Worth, Nicholas; Dawson, J R. (2017) Near-field response of an axisymmetric jet to transverse acoustic forcing. 16th European Turbulence Conference , Stockholm 2017-07-21 - 2017-07-24