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Journal Articles

Unsteady Structure of Compressor Tip Leakage Flows

Joshua M. Maynard, Andrew P. S. Wheeler, James V. Taylor, Roger Wells
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051005.
Paper No: TURBO-22-1153
DOI: https://doi.org/10.1115/1.4055769
Published Online: November 25, 2022
View Article titled, Unsteady Structure of Compressor Tip Leakage Flows
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Topics: Blades, Flow (Dynamics), Separation (Technology), Simulation, Turbulence, Corners (Structural elements), Compressors, Stators, Bubbles, Suction
Proceedings Papers

Unsteady Structure of Compressor Tip Leakage Flows

Joshua M. Maynard, Andrew P. S. Wheeler, James V. Taylor, Roger Wells
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A003, June 13–17, 2022
Paper No: GT2022-78371
DOI: https://doi.org/10.1115/GT2022-78371
View Paper titled, Unsteady Structure of Compressor Tip Leakage Flows
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Topics: Compressors, Leakage flows, Flow (Dynamics), Blades, Corners (Structural elements), Engineering simulation, Simulation, Turbulence, Unsteady flow, Bubbles
Proceedings Papers

The Effect of Compressibility Factor on Turbine Performance

David Baumgärtner, John J. Otter, Andrew P. S. Wheeler
Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T06A020, June 7–11, 2021
Paper No: GT2021-60241
DOI: https://doi.org/10.1115/GT2021-60241
View Paper titled, The Effect of Compressibility Factor on Turbine Performance
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Topics: Compressibility, Turbines, Fluids, Boundary layers, Shock (Mechanics)
Proceedings Papers

Low Reynolds Number Effects on the Separation and Wake of a Compressor Blade

Qiang Liu, Will Ager, Cesare Hall, Andrew P. S. Wheeler
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A031, June 7–11, 2021
Paper No: GT2021-59284
DOI: https://doi.org/10.1115/GT2021-59284
View Paper titled, Low Reynolds Number Effects on the Separation and Wake of a Compressor Blade
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Topics: Blades, Bubbles, Cascades (Fluid dynamics), Compressors, Reynolds number, Separation (Technology), Wakes
Journal Articles

Accurate Prediction of Loss Using High Fidelity Methods

Pawel J. Przytarski, Andrew P. S. Wheeler
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. March 2021, 143(3): 031008.
Paper No: TURBO-20-1186
DOI: https://doi.org/10.1115/1.4050115
Published Online: March 1, 2021
View Article titled, Accurate Prediction of Loss Using High Fidelity Methods
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Topics: Entropy, Flow (Dynamics), Resolution (Optics), Turbulence, Compressors, Energy dissipation, Pressure
Journal Articles

The Effect of Gapping on Compressor Performance

Pawel J. Przytarski, Andrew P. S. Wheeler
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. December 2020, 142(12): 121006.
Paper No: TURBO-19-1298
DOI: https://doi.org/10.1115/1.4047933
Published Online: November 9, 2020
View Article titled, The Effect of Gapping on Compressor Performance
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Topics: Turbulence, Wakes, Compressors
Journal Articles

The Effect of Isentropic Exponent on Transonic Turbine Performance

David Baumgärtner, John J. Otter, Andrew P. S. Wheeler
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. August 2020, 142(8): 081007.
Paper No: TURBO-19-1310
DOI: https://doi.org/10.1115/1.4046528
Published Online: July 29, 2020
View Article titled, The Effect of Isentropic Exponent on Transonic Turbine Performance
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Topics: Computational fluid dynamics, Flow (Dynamics), Fluids, Mach number, Pressure, Turbines, Design, Blades, Gasdynamics, Cascades (Fluid dynamics)
Proceedings Papers

The Effect of Rotor-Stator Gap on Repeating-Stage Compressor Loss

Pawel J. Przytarski, Andrew P. S. Wheeler
Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT45A013, June 17–21, 2019
Paper No: GT2019-91007
DOI: https://doi.org/10.1115/GT2019-91007
View Paper titled, The Effect of Rotor-Stator Gap on Repeating-Stage Compressor Loss
Click here to open pdf in another window PDF for The Effect of Rotor-Stator Gap on Repeating-Stage Compressor Loss
Topics: Compressors, Rotors, Stators, Blades, Turbulence, Wakes, Energy dissipation, Large eddy simulation, Numerical analysis, Simulation
Proceedings Papers

The Effect of Isentropic Exponent on Transonic Turbine Performance

David Baumgärtner, John J. Otter, Andrew P. S. Wheeler
Proc. ASME. GT2019, Volume 2C: Turbomachinery, V02CT41A008, June 17–21, 2019
Paper No: GT2019-90251
DOI: https://doi.org/10.1115/GT2019-90251
View Paper titled, The Effect of Isentropic Exponent on Transonic Turbine Performance
Click here to open pdf in another window PDF for The Effect of Isentropic Exponent on Transonic Turbine Performance
Topics: Turbines, Carbon dioxide, Cascades (Fluid dynamics), Engineering simulation, Flow (Dynamics), Fluids, Gasdynamics, Mach number, Simulation, Temperature
Journal Articles

The Effect of Nonequilibrium Boundary Layers on Compressor Performance

Andrew P. S. Wheeler, Anthony M. J. Dickens, Robert J. Miller
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. October 2018, 140(10): 101003.
Paper No: TURBO-18-1057
DOI: https://doi.org/10.1115/1.4040094
Published Online: September 28, 2018
View Article titled, The Effect of Nonequilibrium Boundary Layers on Compressor Performance
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Topics: Boundary layers, Compressors, Flow (Dynamics), Reynolds number, Shear (Mechanics), Simulation, Suction, Turbulence, Energy dissipation, Blades
Proceedings Papers

Accurate Prediction of Loss Using High Fidelity Methods

Pawel J. Przytarski, Andrew P. S. Wheeler
Proc. ASME. GT2018, Volume 2C: Turbomachinery, V02CT42A051, June 11–15, 2018
Paper No: GT2018-77125
DOI: https://doi.org/10.1115/GT2018-77125
View Paper titled, Accurate Prediction of Loss Using High Fidelity Methods
Click here to open pdf in another window PDF for Accurate Prediction of Loss Using High Fidelity Methods
Topics: Aircraft engines, Cascades (Fluid dynamics), Compressors, Energy dissipation, Flow (Dynamics), Physics, Resolution (Optics), Simulation, Turbulence, Vortices
Proceedings Papers

The Effect of Non-Equilibrium Boundary Layers on Compressor Performance

Andrew P. S. Wheeler, Anthony M. J. Dickens, Robert J. Miller
Proc. ASME. GT2017, Volume 2B: Turbomachinery, V02BT41A040, June 26–30, 2017
Paper No: GT2017-64635
DOI: https://doi.org/10.1115/GT2017-64635
View Paper titled, The Effect of Non-Equilibrium Boundary Layers on Compressor Performance
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Topics: Boundary layers, Compressors, Equilibrium (Physics), Blades, Computer simulation, Reynolds number, Separation (Technology), Suction
Journal Articles

The Effect of Rotor Casing on Low-Pressure Steam Turbine and Diffuser Interactions

Gursharanjit Singh, Andrew P. S. Wheeler, Gurnam Singh
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2017, 139(2): 022607.
Paper No: GTP-16-1174
DOI: https://doi.org/10.1115/1.4034417
Published Online: September 20, 2016
View Article titled, The Effect of Rotor Casing on Low-Pressure Steam Turbine and Diffuser Interactions
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Topics: Diffusers, Flow (Dynamics), Pressure, Rotors, Leakage flows, Blades
Journal Articles

Direct Numerical Simulations of a High-Pressure Turbine Vane

Andrew P. S. Wheeler, Richard D. Sandberg, Neil D. Sandham, Richard Pichler, Vittorio Michelassi, Greg Laskowski
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. July 2016, 138(7): 071003.
Paper No: TURBO-15-1231
DOI: https://doi.org/10.1115/1.4032435
Published Online: February 17, 2016
View Article titled, Direct Numerical Simulations of a High-Pressure Turbine Vane
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Topics: Flow (Dynamics), Heat transfer, Suction, Turbines, Turbulence, Computer simulation, High pressure (Physics), Energy dissipation, Boundary layers, Mach number
Proceedings Papers

Direct Numerical Simulations of a High Pressure Turbine Vane

Andrew P. S. Wheeler, Richard D. Sandberg, Neil D. Sandham, Richard Pichler, Vittorio Michelassi, Greg Laskowski
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT38A027, June 15–19, 2015
Paper No: GT2015-43133
DOI: https://doi.org/10.1115/GT2015-43133
View Paper titled, Direct Numerical Simulations of a High Pressure Turbine Vane
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Topics: Computer simulation, High pressure (Physics), Turbines, Turbulence, Flow (Dynamics), Heat transfer, Energy dissipation, Mach number, Physics, Reynolds number
Proceedings Papers

A Study of Trailing-Edge Losses in Organic Rankine Cycle Turbines

Francisco J. Durá Galiana, Andrew P. S. Wheeler, Jonathan Ong
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT38A020, June 15–19, 2015
Paper No: GT2015-42920
DOI: https://doi.org/10.1115/GT2015-42920
View Paper titled, A Study of Trailing-Edge Losses in Organic Rankine Cycle Turbines
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Topics: Organic Rankine cycle, Turbines, Flow (Dynamics), Shock (Mechanics), Computational fluid dynamics, Engineering simulation, Simulation, Supersonic flow
Proceedings Papers

The Effect of Rotor Casing on Low Pressure Steam Turbine and Diffuser Interactions

Gursharanjit Singh, Gurnam Singh, Andrew P. S. Wheeler
Proc. ASME. GT2015, Volume 2B: Turbomachinery, V02BT40A006, June 15–19, 2015
Paper No: GT2015-43030
DOI: https://doi.org/10.1115/GT2015-43030
View Paper titled, The Effect of Rotor Casing on Low Pressure Steam Turbine and Diffuser Interactions
Click here to open pdf in another window PDF for The Effect of Rotor Casing on Low Pressure Steam Turbine and Diffuser Interactions
Topics: Diffusers, Pressure, Rotors, Steam turbines, Computational fluid dynamics, Shapes, Blades, Computational methods, Design, Engineering simulation
Proceedings Papers

A Study of the Three-Dimensional Unsteady Real-Gas Flows Within a Transonic ORC Turbine

Andrew P. S. Wheeler, Jonathan Ong
Proc. ASME. GT2014, Volume 3B: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Supercritical CO2 Power Cycles; Wind Energy, V03BT26A003, June 16–20, 2014
Paper No: GT2014-25475
DOI: https://doi.org/10.1115/GT2014-25475
View Paper titled, A Study of the Three-Dimensional Unsteady Real-Gas Flows Within a Transonic ORC Turbine
Click here to open pdf in another window PDF for A Study of the Three-Dimensional Unsteady Real-Gas Flows Within a Transonic ORC Turbine
Topics: Flow (Dynamics), Organic Rankine cycle, Turbines, Computational fluid dynamics, Rotors, Engineering simulation, Inflow, Reynolds-averaged Navier–Stokes equations, Shapes, Shock (Mechanics)
Proceedings Papers

Direct Numerical Simulations of a Transonic Tip Flow With Free-Stream Disturbances

Andrew P. S. Wheeler, Richard D. Sandberg
Proc. ASME. TBTS2013, ASME 2013 Turbine Blade Tip Symposium, V001T01A002, September 30–October 3, 2013
Paper No: TBTS2013-2037
DOI: https://doi.org/10.1115/TBTS2013-2037
View Paper titled, Direct Numerical Simulations of a Transonic Tip Flow With Free-Stream Disturbances
Click here to open pdf in another window PDF for Direct Numerical Simulations of a Transonic Tip Flow With Free-Stream Disturbances
Topics: Computer simulation, Flow (Dynamics), Turbulence, Bubbles, Reynolds-averaged Navier–Stokes equations, Separation (Technology), Cross-flow, Engines, Heat transfer, Stability
Proceedings Papers

The Role of Dense Gas Dynamics on ORC Turbine Performance

Andrew P. S. Wheeler, Jonathan Ong
Proc. ASME. GT2013, Volume 2: Aircraft Engine; Coal, Biomass and Alternative Fuels; Cycle Innovations, V002T07A030, June 3–7, 2013
Paper No: GT2013-95858
DOI: https://doi.org/10.1115/GT2013-95858
View Paper titled, The Role of Dense Gas Dynamics on ORC Turbine Performance
Click here to open pdf in another window PDF for The Role of Dense Gas Dynamics on ORC Turbine Performance
Topics: Gasdynamics, Organic Rankine cycle, Turbines, Fluids, Design, Gas flow, Gases, High pressure (Physics), Nozzles