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Journal Articles

Optimized Film Cooling Flow on a Contoured Endwall Within a Transonic Annular Cascade

Timothy A. Burdett, Izhar Ullah, Lesley M. Wright, Je-Chin Han, John W. McClintic, Daniel C. Crites, Ardeshir Riahi
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. April 2023, 15(4): 041011.
Paper No: TSEA-22-1484
https://doi.org/10.1115/1.4056839
Published Online: March 2, 2023
View Article titled, Optimized Film Cooling Flow on a Contoured Endwall Within a Transonic Annular Cascade
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Topics: Coolants, Film cooling, Flow (Dynamics), Cascades (Fluid dynamics), Pressure
Proceedings Papers

Optimized Film Cooling Flow on a Contoured Endwall Within a Transonic Annular Cascade

Timothy A. Burdett, Izhar Ullah, Lesley M. Wright, Je-Chin Han, John W. McClintic, Daniel C. Crites, Ardeshir Riahi
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A005, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78519
https://doi.org/10.1115/GT2022-78519
View Paper titled, Optimized Film Cooling Flow on a Contoured Endwall Within a Transonic Annular Cascade
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Topics: Cascades (Fluid dynamics), Film cooling, Flow (Dynamics)
Journal Articles

Upstream Film Cooling on the Contoured Endwall of a Transonic Turbine Vane in an Annular Cascade

Daniel A. Salinas, Izhar Ullah, Lesley M. Wright, Je-Chin Han, John W. McClintic, Daniel C. Crites, Ardeshir Riahi
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2021, 143(6): 061012.
Paper No: TURBO-20-1301
https://doi.org/10.1115/1.4050357
Published Online: April 9, 2021
View Article titled, Upstream Film Cooling on the Contoured Endwall of a Transonic Turbine Vane in an Annular Cascade
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Topics: Cascades (Fluid dynamics), Coolants, Film cooling, Flow (Dynamics), Pressure, Mach number, Density, Cooling
Proceedings Papers

Upstream Film Cooling on the Contoured Endwall of a Transonic Turbine Vane in an Annular Cascade

Daniel A. Salinas, Izhar Ullah, Lesley M. Wright, Je-Chin Han, John W. McClintic, Daniel C. Crites, Ardeshir Riahi
Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A072, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16188
https://doi.org/10.1115/GT2020-16188
View Paper titled, Upstream Film Cooling on the Contoured Endwall of a Transonic Turbine Vane in an Annular Cascade
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Topics: Cascades (Fluid dynamics), Film cooling, Turbines
Journal Articles

Transonic Turbine Vane Endwall Film Cooling Using the Pressure-Sensitive Paint Measurement Technique

Chao-Cheng Shiau, Izzet Sahin, Izhar Ullah, Je-Chin Han, Alexander V. Mirzamoghadam, Ardeshir Riahi, Curtis Stimpson
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2020, 142(8): 081004.
Paper No: TURBO-19-1273
https://doi.org/10.1115/1.4045990
Published Online: July 28, 2020
View Article titled, Transonic Turbine Vane Endwall Film Cooling Using the Pressure-Sensitive Paint Measurement Technique
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Topics: Coolants, Film cooling, Flow (Dynamics), Mach number, Momentum, Pressure, Density, Turbines, Cooling, Cascades (Fluid dynamics)
Proceedings Papers

Influence of Hole Inlet Geometry on the Film Cooling Effectiveness From Shaped Film Cooling Holes

Travis B. Watson, Kyle R. Vinton, Lesley M. Wright, Daniel C. Crites, Mark C. Morris, Ardeshir Riahi
Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT19A028, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-92057
https://doi.org/10.1115/GT2019-92057
View Paper titled, Influence of Hole Inlet Geometry on the Film Cooling Effectiveness From Shaped Film Cooling Holes
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Topics: Film cooling, Geometry, Coolants, Turbulence, Density, Flat plates, Paints, Pressure, Shapes
Proceedings Papers

Transonic Turbine Vane Endwall Film Cooling Using PSP Measurement Technique

Chao-Cheng Shiau, Izzet Sahin, Izhar Ullah, Je-Chin Han, Alexander V. Mirzamoghadam, Ardeshir Riahi, Curtis Stimpson
Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT19A014, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91030
https://doi.org/10.1115/GT2019-91030
View Paper titled, Transonic Turbine Vane Endwall Film Cooling Using PSP Measurement Technique
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Topics: Film cooling, Turbines, Flow (Dynamics), Pressure, Shock waves, Carbon dioxide, Cascades (Fluid dynamics), Coolants, Cooling, Cross-flow
Proceedings Papers

Transonic Turbine Vane Suction Side Film Cooling With Showerhead Effect Using PSP Measurement Technique

Chao-Cheng Shiau, Nafiz H. K. Chowdhury, Je-Chin Han, Alexander V. Mirzamoghadam, Ardeshir Riahi
Proc. ASME. GT2017, Volume 5C: Heat Transfer, V05CT19A002, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63143
https://doi.org/10.1115/GT2017-63143
View Paper titled, Transonic Turbine Vane Suction Side Film Cooling With Showerhead Effect Using PSP Measurement Technique
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Topics: Film cooling, Suction, Turbines, Coolants, Cooling, Density, Mach number, Carbon dioxide, Cascades (Fluid dynamics), Geometry
Journal Articles

Combined Effects of Freestream Pressure Gradient and Density Ratio on the Film Cooling Effectiveness of Round and Shaped Holes on a Flat Plate

Kyle R. Vinton, Travis B. Watson, Lesley M. Wright, Daniel C. Crites, Mark C. Morris, Ardeshir Riahi
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2017, 139(4): 041003.
Paper No: TURBO-16-1223
https://doi.org/10.1115/1.4035044
Published Online: January 4, 2017
View Article titled, Combined Effects of Freestream Pressure Gradient and Density Ratio on the Film Cooling Effectiveness of Round and Shaped Holes on a Flat Plate
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Topics: Coolants, Density, Film cooling, Flow (Dynamics), Pressure, Pressure gradient, Flat plates, Momentum, Cooling
Proceedings Papers

Application of S-PIV for Investigation of Round and Shaped Film Cooling Holes at High Density Ratios

Travis B. Watson, Sara Nahang-Toudeshki, Lesley M. Wright, Daniel C. Crites, Mark C. Morris, Ardeshir Riahi
Proc. ASME. GT2016, Volume 5C: Heat Transfer, V05CT19A008, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56209
https://doi.org/10.1115/GT2016-56209
View Paper titled, Application of S-PIV for Investigation of Round and Shaped Film Cooling Holes at High Density Ratios
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Topics: Density, Film cooling, Coolants, Flow (Dynamics), Gas turbines, Vorticity, Compressors, Cooling, Gases, Particulate matter
Proceedings Papers

Combined Effects of Freestream Pressure Gradient and Density Ratio on the Film Cooling Effectiveness of Round and Shaped Holes on a Flat Plate

Kyle R. Vinton, Travis B. Watson, Lesley M. Wright, Daniel C. Crites, Mark C. Morris, Ardeshir Riahi
Proc. ASME. GT2016, Volume 5C: Heat Transfer, V05CT19A009, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56210
https://doi.org/10.1115/GT2016-56210
View Paper titled, Combined Effects of Freestream Pressure Gradient and Density Ratio on the Film Cooling Effectiveness of Round and Shaped Holes on a Flat Plate
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Topics: Density, Film cooling, Flat plates, Pressure gradient, Coolants, Flow (Dynamics), Pressure, Wind tunnels
Proceedings Papers

Heat Transfer Coefficients and Film Cooling Effectiveness of Transonic Turbine Vane Suction Surface Using TSP Technique

Chao-Cheng Shiau, Nafiz H. K. Chowdhury, Shang-Feng Yang, Je-Chin Han, Alexander MirzaMoghadam, Ardeshir Riahi
Proc. ASME. GT2016, Volume 5C: Heat Transfer, V05CT19A010, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56264
https://doi.org/10.1115/GT2016-56264
View Paper titled, Heat Transfer Coefficients and Film Cooling Effectiveness of Transonic Turbine Vane Suction Surface Using TSP Technique
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Topics: Film cooling, Heat transfer coefficients, Suction, Turbines, Coolants, Heat transfer, Mach number, Cascades (Fluid dynamics), Compressed air, Density
Proceedings Papers

Combined Effects of Jet Plate Thickness and Fillet Radius on Leading Edge Jet Impingement With Round and Racetrack Shaped Jets

Weston V. Harmon, Lesley M. Wright, Daniel C. Crites, Mark C. Morris, Ardeshir Riahi
Proc. ASME. GT2015, Volume 5A: Heat Transfer, V05AT11A032, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43505
https://doi.org/10.1115/GT2015-43505
View Paper titled, Combined Effects of Jet Plate Thickness and Fillet Radius on Leading Edge Jet Impingement With Round and Racetrack Shaped Jets
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Topics: Jets, Flow (Dynamics), Reynolds number, Heat transfer, Orifices, Plates (structures), Airfoils, Aluminum plate, Blades, Gas turbines
Proceedings Papers

Film Cooling Effectiveness of Transonic Turbine Vane Suction Side With Compound-Angle Shaped Hole Configuration

Shang-Feng Yang, Je-Chin Han, Alexander MirzaMoghadam, Ardeshir Riahi
Proc. ASME. GT2015, Volume 5B: Heat Transfer, V05BT12A005, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42184
https://doi.org/10.1115/GT2015-42184
View Paper titled, Film Cooling Effectiveness of Transonic Turbine Vane Suction Side With Compound-Angle Shaped Hole Configuration
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Topics: Film cooling, Suction, Turbines, Coolants, Density, Mach number, Transonic flow, Carbon dioxide, Cascades (Fluid dynamics), Flow (Dynamics)
Journal Articles

Aeroperformance Measurements for a Fully Cooled High-Pressure Turbine Stage

Charles Haldeman, Michael Dunn, Randall Mathison, William Troha, Timothy Vander Hoek, Ardeshir Riahi
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2014, 136(3): 031001.
Paper No: TURBO-12-1131
https://doi.org/10.1115/1.4024777
Published Online: September 26, 2013
View Article titled, Aeroperformance Measurements for a Fully Cooled High-Pressure Turbine Stage
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Topics: Blades, Cooling, Flow (Dynamics), Pressure, Temperature, Turbines, Design, High pressure (Physics), Coolants, Damage
Proceedings Papers

Aeroperformance Measurements for a Fully Cooled High-Pressure Turbine Stage

Charles Haldeman, Michael Dunn, Randall Mathison, William Troha, Timothy Vander Hoek, Ardeshir Riahi
Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 765-776, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69941
https://doi.org/10.1115/GT2012-69941
View Paper titled, Aeroperformance Measurements for a Fully Cooled High-Pressure Turbine Stage
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Topics: High pressure (Physics), Turbines, Temperature, Cooling, Blades, Pressure, Clearances (Engineering), Coolants, Engines, Flow (Dynamics)
Journal Articles

High Pressure Turbine Low Radius Radial TOBI Discharge Coefficient Validation Process

Alexander V. Mirzamoghadam, Ardeshir Riahi, Mark C. Morris
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. July 2013, 135(7): 071103.
Paper No: FE-11-1481
https://doi.org/10.1115/1.4024108
Published Online: April 22, 2013
View Article titled, High Pressure Turbine Low Radius Radial TOBI Discharge Coefficient Validation Process
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Topics: Computational fluid dynamics, Discharge coefficient, Flow (Dynamics), Pressure, Turbines, Temperature, Blades, High pressure (Physics), Cavities
Proceedings Papers

Gas Turbine Combustor Heat Shield Impingement Cooling Baffle

Ardeshir Riahi, Fred G. Borns
Proc. ASME. GT2004, Volume 3: Turbo Expo 2004, 113-123, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-53160
https://doi.org/10.1115/GT2004-53160
View Paper titled, Gas Turbine Combustor Heat Shield Impingement Cooling Baffle
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Topics: Combustion chambers, Gas turbines, Heat shielding, Impingement cooling, Flow (Dynamics), Heat transfer, Convection, Cross-flow, Stress, Temperature