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Journal Articles

Impact of Lean-Burn Combustor Flow on Nozzle Guide Vane Performance

Jonas Amend, Nafiz Chowdhury, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2025, 147(1): 011001.
Paper No: TURBO-23-1329
https://doi.org/10.1115/1.4065701
Published Online: August 6, 2024
View Article titled, Impact of Lean-Burn Combustor Flow on Nozzle Guide Vane Performance
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Topics: Combustion chambers, Computational fluid dynamics, Coolants, Flow (Dynamics), Nozzle guide vanes, Temperature, Turbulence, Pressure
Journal Articles

Comparison of Eddy Viscosity Models for High Turbulence Nozzle Guide Vane Flows

Jonas Amend, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2024, 146(8): 081004.
Paper No: TURBO-23-1103
https://doi.org/10.1115/1.4064484
Published Online: March 12, 2024
View Article titled, Comparison of Eddy Viscosity Models for High Turbulence Nozzle Guide Vane Flows
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Topics: Flow (Dynamics), Turbulence, Wakes, Eddies (Fluid dynamics), Viscosity, Computational fluid dynamics, Nozzle guide vanes, Shear stress
Journal Articles

Aerodynamic and Thermal Field Development of Cooled Transonic HP NGV

Jonas Amend, Roderick Lubbock, Francesco Ornano, Nafiz Chowdhury, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2024, 146(2): 021010.
Paper No: TURBO-23-1048
https://doi.org/10.1115/1.4063879
Published Online: November 16, 2023
View Article titled, Aerodynamic and Thermal Field Development of Cooled Transonic HP NGV
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Topics: Computational fluid dynamics, Flow (Dynamics), Kinetic energy, Nozzle guide vanes, Pressure, Wakes, Whirls, Temperature, Turbulence
Journal Articles

Fundamentals of Scaling of Overall Cooling Effectiveness With Temperature Ratio

James Cartlidge, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2024, 146(1): 011008.
Paper No: TURBO-23-1012
https://doi.org/10.1115/1.4063730
Published Online: October 31, 2023
View Article titled, Fundamentals of Scaling of Overall Cooling Effectiveness With Temperature Ratio
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Topics: Cooling, Temperature, Boundary-value problems, Heat transfer coefficients, Coolants, Flow (Dynamics), Cooling systems
Proceedings Papers

ECAT+: A Second-Generation High-Temperature Engine Component Aerothermal Facility at the University of Oxford

Andrew Messenger, James Cartlidge, Nafiz Chowdhury, Frédéric Goenaga, Thomas Povey
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A023, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102935
https://doi.org/10.1115/GT2023-102935
View Paper titled, ECAT+: A Second-Generation High-Temperature Engine Component Aerothermal Facility at the University of Oxford
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Topics: Engines, High temperature, Turbines, Design, Temperature, Transients (Dynamics), Combustion chambers, Coolants, Heating, Compressors
Journal Articles

Impact of Temperature Ratio on Overall Cooling Performance: Low-Order-Model-Based Analysis of Experiment Design

Aravin Dass Naidu, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2023, 145(9): 091006.
Paper No: TURBO-22-1173
https://doi.org/10.1115/1.4062279
Published Online: June 9, 2023
View Article titled, Impact of Temperature Ratio on Overall Cooling Performance: Low-Order-Model-Based Analysis of Experiment Design
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Topics: Coolants, Cooling, Temperature, Flat plates, Engines
Journal Articles

Experimental Study of Impact of In-Service Deterioration on Aerodynamic Performance of High-Pressure Nozzle Guide Vanes

Mathias Michaud, Dougal Jackson, Frédéric Goenaga, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2023, 145(6): 061017.
Paper No: TURBO-21-1259
https://doi.org/10.1115/1.4056774
Published Online: March 2, 2023
View Article titled, Experimental Study of Impact of In-Service Deterioration on Aerodynamic Performance of High-Pressure Nozzle Guide Vanes
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Topics: Coolants, Film cooling, Flow (Dynamics), Pressure, Surface roughness, Kinetic energy, Nozzle guide vanes, Engines, Spallation (Nuclear physics), High pressure (Physics)
Journal Articles

Lean-Burn Combustor Simulator for an Engine-Component Test Facility: An Experimental and Computational Study

Jonas Amend, Roderick Lubbock, Francesco Ornano, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2023, 145(6): 061014.
Paper No: TURBO-22-1043
https://doi.org/10.1115/1.4056387
Published Online: January 30, 2023
View Article titled, Lean-Burn Combustor Simulator for an Engine-Component Test Facility: An Experimental and Computational Study
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Topics: Combustion chambers, Computational fluid dynamics, Flow (Dynamics), Pressure, Temperature, Coolants, Design, Engines, Simulation, Nozzle guide vanes
Journal Articles

Impact of Trailing Edge Overhang Length on the Loss Characteristics of Fully Cooled Transonic Nozzle Guide Vanes

Daniel Burdett, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051012.
Paper No: TURBO-21-1060
https://doi.org/10.1115/1.4056056
Published Online: December 6, 2022
View Article titled, Impact of Trailing Edge Overhang Length on the Loss Characteristics of Fully Cooled Transonic Nozzle Guide Vanes
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Topics: Boundary layers, Computational fluid dynamics, Flow (Dynamics), Geometry, Pressure, Vortex shedding, Wakes, Coolants, Design, Nozzle guide vanes
Journal Articles

Experimental Study of Impact of In-Service Deterioration on Thermal Performance of High-Pressure Nozzle Guide Vanes

Mathias Michaud, Nafiz H. K. Chowdhury, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2023, 145(2): 021014.
Paper No: TURBO-22-1017
https://doi.org/10.1115/1.4055864
Published Online: November 7, 2022
View Article titled, Experimental Study of Impact of In-Service Deterioration on Thermal Performance of High-Pressure Nozzle Guide Vanes
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Topics: Coolants, Cooling, Film cooling, Surface roughness, Temperature, Engines, Thermal barrier coatings, Heat transfer
Journal Articles

Annular Dump Diffuser and Deswirl System for Back-Pressure Control in Engine-Scale Transonic Annular Cascade

Mathias Michaud, Francesco Ornano, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2023, 145(4): 041006.
Paper No: TURBO-21-1089
https://doi.org/10.1115/1.4055863
Published Online: November 4, 2022
View Article titled, Annular Dump Diffuser and Deswirl System for Back-Pressure Control in Engine-Scale Transonic Annular Cascade
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Topics: Flow (Dynamics), Pressure, Nozzle guide vanes, Design, Diffusers, Computational fluid dynamics
Journal Articles

Analysis of Averaging Methods for Nonuniform Total Pressure Fields

Daniel Burdett, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2022, 144(5): 051011.
Paper No: TURBO-20-1403
https://doi.org/10.1115/1.4053020
Published Online: January 28, 2022
View Article titled, Analysis of Averaging Methods for Nonuniform Total Pressure Fields
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Topics: Computational fluid dynamics, Flow (Dynamics), Pressure, Wakes, Mach number
Journal Articles

Experimental and Numerical Analysis of Loss Characteristics of Cooled Transonic Nozzle Guide Vanes

Daniel Burdett, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2022, 144(5): 051009.
Paper No: TURBO-21-1040
https://doi.org/10.1115/1.4053019
Published Online: January 13, 2022
View Article titled, Experimental and Numerical Analysis of Loss Characteristics of Cooled Transonic Nozzle Guide Vanes
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Topics: Computational fluid dynamics, Coolants, Flow (Dynamics), Kinetic energy, Mach number, Pressure, Reynolds-averaged Navier–Stokes equations, Wakes, Nozzle guide vanes, Simulation
Journal Articles

Method for Determining Adiabatic Film Effectiveness in Presence of Thermal Boundary Layer

James Parker, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2022, 144(5): 051010.
Paper No: TURBO-20-1404
https://doi.org/10.1115/1.4053021
Published Online: January 13, 2022
View Article titled, Method for Determining Adiabatic Film Effectiveness in Presence of Thermal Boundary Layer
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Topics: Coolants, Temperature, Thermal boundary layers, Uncertainty, Flow (Dynamics)
Journal Articles

Effect of Reynolds Number on Five-Hole Probe Performance: Experimental Study of the Open-Access Oxford Probe

Maximilian Passmann, Stefan aus der Wiesche, Thomas Povey, Detlef Bergmann
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2021, 143(9): 091003.
Paper No: TURBO-20-1376
https://doi.org/10.1115/1.4050597
Published Online: May 3, 2021
View Article titled, Effect of Reynolds Number on Five-Hole Probe Performance: Experimental Study of the Open-Access Oxford Probe
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Topics: Calibration, Probes, Reynolds number, Pressure, Flow (Dynamics), Errors
Journal Articles

Understanding Capacity Sensitivity of Cooled Transonic Nozzle Guide Vanes: A Parametric Experimental and Computational Study of the Impact of Trailing Edge Geometry

Daniel Burdett, Frédéric Goenaga, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2021, 143(5): 051001.
Paper No: TURBO-20-1172
https://doi.org/10.1115/1.4050068
Published Online: March 30, 2021
View Article titled, Understanding Capacity Sensitivity of Cooled Transonic Nozzle Guide Vanes: A Parametric Experimental and Computational Study of the Impact of Trailing Edge Geometry
Open the PDF for Understanding Capacity Sensitivity of Cooled Transonic Nozzle Guide Vanes: A Parametric Experimental and Computational Study of the Impact of Trailing Edge Geometry in another window
Topics: Computational fluid dynamics, Flow (Dynamics), Geometry, Pressure, Coolants, Boundary layers, Nozzle guide vanes
Journal Articles

Impact of Rotor-Casing Effusion Cooling on Turbine Performance and Operating Point: An Experimental, Computational, and Theoretical Study

Maxwell G. Adams, Paolo Adami, Matthew Collins, Paul F. Beard, Kam S. Chana, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2021, 143(3): 031005.
Paper No: TURBO-20-1032
https://doi.org/10.1115/1.4050019
Published Online: February 19, 2021
View Article titled, Impact of Rotor-Casing Effusion Cooling on Turbine Performance and Operating Point: An Experimental, Computational, and Theoretical Study
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Topics: Coolants, Cooling, Flow (Dynamics), Pressure, Rotors, Turbines, Blades
Journal Articles

Effect of a Combined Hot-Streak and Swirl Profile on Cooled 1.5-Stage Turbine Aerodynamics: An Experimental and Computational Study

Maxwell G. Adams, Paul F. Beard, Mark R. Stokes, Fredrik Wallin, Kam S. Chana, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2021, 143(2): 021011.
Paper No: TURBO-19-1186
https://doi.org/10.1115/1.4049103
Published Online: February 1, 2021
View Article titled, Effect of a Combined Hot-Streak and Swirl Profile on Cooled 1.5-Stage Turbine Aerodynamics: An Experimental and Computational Study
Open the PDF for Effect of a Combined Hot-Streak and Swirl Profile on Cooled 1.5-Stage Turbine Aerodynamics: An Experimental and Computational Study in another window
Topics: Aerodynamics, Flow (Dynamics), Pressure, Rotors, Temperature, Turbines, Blades, High pressure (Physics), Combustion chambers
Proceedings Papers

Effect of Reynolds Number on Five-Hole Probe Performance: Experimental Study of the Open-Access Oxford Probe

Maximilian Passmann, Stefan aus der Wiesche, Thomas Povey, Detlef Bergmann
Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T05A028, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16074
https://doi.org/10.1115/GT2020-16074
View Paper titled, Effect of Reynolds Number on Five-Hole Probe Performance: Experimental Study of the Open-Access Oxford Probe
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Topics: Calibration, Probes, Reynolds number
Journal Articles

Theory of Non-Dimensional Groups in Film Effectiveness Studies

Francesco Ornano, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2020, 142(4): 041002.
Paper No: TURBO-19-1075
https://doi.org/10.1115/1.4046277
Published Online: February 26, 2020
View Article titled, Theory of Non-Dimensional Groups in Film Effectiveness Studies
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Topics: Coolants, Density, Film cooling, Flow (Dynamics), Momentum, Specific heat, Temperature, Reynolds-averaged Navier–Stokes equations, Shear (Mechanics), Cooling