Nicholas Worth
Nicholas Worth
Professor, Head of the Thermofluids Research Group
Department of Energy and Process EngineeringBackground and activities
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.
Courses
- TEP4541 - Thermo- and Fluid Dynamics, Specialisation Project
- TEP4926 - Thermo- and Fluid Dynamics, Master's Thesis
- TEP4135 - Fluid Mechanics 2
Scientific, academic and artistic work
A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database
Journal publications
- (2022) Heat release rate response of azimuthal thermoacoustic instabilities in a pressurized annular combustor with methane/hydrogen flames. Combustion and Flame. vol. 244.
- (2022) Large volume scanning laser induced fluorescence measurement of a bluff-body stabilised flame in an annular combustor. Experiments in Fluids. vol. 63.
- (2022) Asynchronous and synchronous quenching of a globally unstable jet via axisymmetry breaking. Journal of Fluid Mechanics. vol. 937 (A40).
- (2021) Transient Thermo-Acoustic Responses of Methane/Hydrogen Flames in a Pressurized Annular Combustor. Journal of Engineering For Gas Turbines and Power. vol. 144 (1).
- (2021) A comparison of lab-scale free rotating wind turbines and actuator disks. Journal of Wind Engineering and Industrial Aerodynamics. vol. 209.
- (2021) The effect of hydrogen addition on the amplitude and harmonic response of azimuthal instabilities in a pressurized annular combustor. Combustion and Flame. vol. 228.
- (2021) Azimuthal flame response and symmetry breaking in a forced annular combustor. Combustion and Flame. vol. 233.
- (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. vol. 143 (4).
- (2021) Acoustic-Convective Interference in Transfer Functions of Methane/Hydrogen and Pure Hydrogen Flames. Journal of Engineering For Gas Turbines and Power. vol. 143 (12).
- (2021) The response of an axisymmetric jet placed at various positions in a standing wave. Journal of Fluid Mechanics. vol. 917.
- (2021) Tailoring the gain and phase of the flame transfer function through targeted convective-acoustic interference. Combustion and Flame. vol. 236.
- (2020) Symmetry breaking modelling for azimuthal combustion dynamics. Proceedings of the Combustion Institute. vol. 38 (4).
- (2020) The inter-scale energy budget in a von Kármán mixing flow. Journal of Fluid Mechanics. vol. 895.
- (2020) Self-excited longitudinal and azimuthal modes in a pressurised annular combustor. Proceedings of the Combustion Institute. vol. 38 (4).
- (2020) Vortex dynamics of a jet at the pressure node in a standing wave. Journal of Fluid Mechanics. vol. 882 (A22).
- (2020) Scaling and prediction of transfer functions in lean premixed H2/CH4-flames. Combustion and Flame. vol. 215.
- (2019) A scanning particle tracking velocimetry technique for high‑Reynolds number turbulent flows. Experiments in Fluids. vol. 60 (8).
- (2019) Direct assessment of Kolmogorov's first refined similarity hypothesis. Physical Review Fluids. vol. 4 (022601).
- (2019) Characteristics of self-excited spinning azimuthal modes in an annular combustor with turbulent premixed bluff-body flames. Proceedings of the Combustion Institute. vol. 37 (4).
- (2019) Flame dynamics of azimuthal forced spinning and standing modes in an annular combustor. Proceedings of the Combustion Institute. vol. 37 (4).