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Reza S. Abhari
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Proceedings Papers

Influence of Non-Isothermal Button Gage Surface Temperature in Heat Flux Measurement Applications

David A. Zilles, Reza S. Abhari
Proc. ASME. IMECE99, Heat Transfer: Volume 4, 85-93, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-1107
https://doi.org/10.1115/IMECE1999-1107
View Paper titled, Influence of Non-Isothermal Button Gage Surface Temperature in Heat Flux Measurement Applications
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Topics: Gages, Heat flux, Temperature, Flat plates, Flow (Dynamics), Reynolds number, Borosilicate glasses, Convection, Heat transfer, Mach number
Journal Articles

Unsteady Steam Turbine Optimization Using High-Fidelity Computational Fluid Dynamics

Vahid Iranidokht, Ilias Papagiannis, Anestis I. Kalfas, Reza S. Abhari, Shigeki Senoo, Kazuhiro Momma
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2021, 143(9): 091006.
Paper No: TURBO-20-1367
https://doi.org/10.1115/1.4050441
Published Online: May 5, 2021
View Article titled, Unsteady Steam Turbine Optimization Using High-Fidelity Computational Fluid Dynamics
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Topics: Computational fluid dynamics, Flow (Dynamics), Geometry, Optimization, Pressure, Rotors, Steam turbines, Blades, Cavities, Turbines
Journal Articles

An Additively Manufactured Four-Sensor Fast Response Aerodynamic Probe

Alexandros C. Chasoglou, Panagiotis Tsirikoglou, Anestis I. Kalfas, Reza S. Abhari
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2021, 143(7): 071004.
Paper No: TURBO-20-1339
https://doi.org/10.1115/1.4050360
Published Online: April 9, 2021
View Article titled, An Additively Manufactured Four-Sensor Fast Response Aerodynamic Probe
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Topics: Additive manufacturing, Flow (Dynamics), Pressure, Probes, Sensors, Turbulence, Design, Turbines
Journal Articles

Turbine Hub Cavity Modes and Their Impact on Efficiency

Vahid Iranidokht, Naman Purwar, Anestis I Kalfas, Reza S Abhari, Shigeki Senoo
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2021, 143(3): 031010.
Paper No: TURBO-19-1174
https://doi.org/10.1115/1.4050110
Published Online: March 2, 2021
View Article titled, Turbine Hub Cavity Modes and Their Impact on Efficiency
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Topics: Cavities, Flow (Dynamics), Rotors, Pressure, Computational fluid dynamics, Turbines
Journal Articles

Numerical Model of Liquid Film Formation and Breakup in Last Stage of a Low-Pressure Steam Turbine

Pietro Rossi, Asad Raheem, Reza S. Abhari
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2018, 140(3): 032602.
Paper No: GTP-17-1189
https://doi.org/10.1115/1.4037912
Published Online: October 17, 2017
View Article titled, Numerical Model of Liquid Film Formation and Breakup in Last Stage of a Low-Pressure Steam Turbine
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Topics: Blades, Drops, Erosion, Flow (Dynamics), Liquid films, Pressure, Rotors, Steam turbines, Water, Steam
Journal Articles

Unsteady Flow Field and Coarse Droplet Measurements in the Last Stage of a Low-Pressure Steam Turbine With Supersonic Airfoils Near the Blade Tip

Ilias Bosdas, Michel Mansour, Anestis I. Kalfas, Reza S. Abhari, Shigeki Senoo
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2017, 139(9): 091601.
Paper No: GTP-16-1364
https://doi.org/10.1115/1.4036011
Published Online: April 11, 2017
View Article titled, Unsteady Flow Field and Coarse Droplet Measurements in the Last Stage of a Low-Pressure Steam Turbine With Supersonic Airfoils Near the Blade Tip
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Topics: Blades, Drops, Flow (Dynamics), Pressure, Stators, Steam turbines, Probes, Water, Rotors
Proceedings Papers

Unsteady Flow Field and Coarse Droplet Measurements in the Last Stage of a Low Pressure Steam Turbine With Supersonic Airfoils Near the Blade Tip

Ilias Bosdas, Michel Mansour, Anestis I. Kalfas, Reza S. Abhari, Shigeki Senoo
Proc. ASME. GT2016, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A039, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57753
https://doi.org/10.1115/GT2016-57753
View Paper titled, Unsteady Flow Field and Coarse Droplet Measurements in the Last Stage of a Low Pressure Steam Turbine With Supersonic Airfoils Near the Blade Tip
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Topics: Airfoils, Blades, Drops, Pressure, Steam turbines, Unsteady flow, Rotors, Probes, Stators, Water
Journal Articles

Design Considerations of Rotor Cone Angle for Downwind Wind Turbines

Christian Kress, Ndaona Chokani, Reza S. Abhari
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2016, 138(5): 052602.
Paper No: GTP-15-1334
https://doi.org/10.1115/1.4031604
Published Online: November 3, 2015
View Article titled, Design Considerations of Rotor Cone Angle for Downwind Wind Turbines
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Topics: Design, Rotors, Torque, Blades, Wind turbines
Journal Articles

Unsteady Wet Steam Flow Field Measurements in the Last Stage of Low Pressure Steam Turbine

Ilias Bosdas, Michel Mansour, Anestis I. Kalfas, Reza S. Abhari, Shigeki Senoo
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2016, 138(3): 032601.
Paper No: GTP-15-1295
https://doi.org/10.1115/1.4031345
Published Online: September 22, 2015
View Article titled, Unsteady Wet Steam Flow Field Measurements in the Last Stage of Low Pressure Steam Turbine
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Topics: Flow (Dynamics), Pressure, Probes, Rotors, Steam turbines, Blades, Steam
Proceedings Papers

High Resolution Heat Transfer Measurement Technique on Contoured Endwall With Non-Uniform Thermal Resistance

Benoit Laveau, Reza S. Abhari, Michael E. Crawford, Ewald Lutum
Proc. ASME. GT2015, Volume 5B: Heat Transfer, V05BT13A023, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43639
https://doi.org/10.1115/GT2015-43639
View Paper titled, High Resolution Heat Transfer Measurement Technique on Contoured Endwall With Non-Uniform Thermal Resistance
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Topics: Heat transfer, Resolution (Optics), Thermal resistance, Turbines, Air flow, Boundary-value problems, Bubbles, Calibration, Coolants, Cooling
Proceedings Papers

Unsteady Wet Steam Flow Field Measurements in the Last Stage of Low Pressure Steam Turbine

Ilias Bosdas, Michel Mansour, Anestis I. Kalfas, Reza S. Abhari, Shigeki Senoo
Proc. ASME. GT2015, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A033, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43504
https://doi.org/10.1115/GT2015-43504
View Paper titled, Unsteady Wet Steam Flow Field Measurements in the Last Stage of Low Pressure Steam Turbine
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Topics: Flow (Dynamics), Pressure, Steam, Steam turbines, Blades, Probes, Stress, Control systems, Fluctuations (Physics), Leakage
Proceedings Papers

Design Considerations of Rotor Cone Angle for Downwind Wind Turbines

Christian Kress, Ndaona Chokani, Reza S. Abhari
Proc. ASME. GT2015, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T46A008, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42335
https://doi.org/10.1115/GT2015-42335
View Paper titled, Design Considerations of Rotor Cone Angle for Downwind Wind Turbines
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Topics: Design, Rotors, Wind turbines, Turbines, Torque, Wakes, Blades, Fatigue, Flow (Dynamics), Stress
Journal Articles

Comparison of Performance and Unsteady Loads of Multimegawatt Downwind and Upwind Turbines

Edoardo Frau, Christian Kress, Ndaona Chokani, Reza S. Abhari
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research-Article
J. Sol. Energy Eng. August 2015, 137(4): 041004.
Paper No: SOL-14-1278
https://doi.org/10.1115/1.4030314
Published Online: August 1, 2015
View Article titled, Comparison of Performance and Unsteady Loads of Multimegawatt Downwind and Upwind Turbines
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Topics: Blades, Rotation, Rotors, Thrust, Turbines, Flow (Dynamics), Wind turbines, Stress, Simulation
Journal Articles

Experimental and Numerical Investigation of the Unsteady Flow Field in a Vaned Diffuser of a High-Speed Centrifugal Compressor

Klemens Vogel, Reza S. Abhari, Armin Zemp
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. July 2015, 137(7): 071008.
Paper No: TURBO-14-1259
https://doi.org/10.1115/1.4029175
Published Online: July 1, 2015
View Article titled, Experimental and Numerical Investigation of the Unsteady Flow Field in a Vaned Diffuser of a High-Speed Centrifugal Compressor
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Topics: Blades, Compressors, Computational fluid dynamics, Design, Diffusers, Flow (Dynamics), Fluctuations (Physics), Impellers, Pressure, Suction
Proceedings Papers

An Experimental Study of Film Cooling in a Rotating Transonic Turbine

Reza S. Abhari, A. H. Epstein
Proc. ASME. GT1992, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A018, June 1–4, 1992
Publisher: American Society of Mechanical Engineers
Paper No: 92-GT-201
https://doi.org/10.1115/92-GT-201
View Paper titled, An Experimental Study of Film Cooling in a Rotating Transonic Turbine
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Topics: Film cooling, Turbines, Heat transfer, Rotors, Suction, Cascades (Fluid dynamics), Pressure, Blades, Cooling, Engines
Proceedings Papers

Comparison of Predicted and Experimental Nusselt Number for a Film-Cooled Rotating Blade

Vijay K. Garg, Reza S. Abhari
Proc. ASME. GT1996, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A027, June 10–13, 1996
Publisher: American Society of Mechanical Engineers
Paper No: 96-GT-223
https://doi.org/10.1115/96-GT-223
View Paper titled, Comparison of Predicted and Experimental Nusselt Number for a Film-Cooled Rotating Blade
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Topics: Rotating blades, Blades, Film cooling, Computation, Heat transfer, Pressure, Rotors, Turbine blades, Boundary-value problems, Clearances (Engineering)
Proceedings Papers

Influence of Vane-Blade Spacing on Transonic Turbine Stage Aerodynamics: Part 1 — Time-Averaged Data and Analysis

Brian L. Venable, Robert A. Delaney, Judy A. Busby, Roger L. Davis, Daniel J. Dorney, Michael G. Dunn, Charles W. Haldeman, Reza S. Abhari
Proc. ASME. GT1998, Volume 1: Turbomachinery, V001T01A116, June 2–5, 1998
Publisher: American Society of Mechanical Engineers
Paper No: 98-GT-481
https://doi.org/10.1115/98-GT-481
View Paper titled, Influence of Vane-Blade Spacing on Transonic Turbine Stage Aerodynamics: Part 1 — Time-Averaged Data and Analysis
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Topics: Aerodynamics, Blades, Turbines, Airfoils, Pressure, Pressure sensors, Shock (Mechanics), Tunnels
Proceedings Papers

Influence of Vane-Blade Spacing on Transonic Turbine Stage Aerodynamics: Part II — Time-Resolved Data and Analysis

Judy A. Busby, Roger L. Davis, Daniel J. Dorney, Michael G. Dunn, Charles W. Haldeman, Reza S. Abhari, Brian L. Venable, Robert A. Delaney
Proc. ASME. GT1998, Volume 1: Turbomachinery, V001T01A117, June 2–5, 1998
Publisher: American Society of Mechanical Engineers
Paper No: 98-GT-482
https://doi.org/10.1115/98-GT-482
View Paper titled, Influence of Vane-Blade Spacing on Transonic Turbine Stage Aerodynamics: Part II — Time-Resolved Data and Analysis
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Topics: Aerodynamics, Blades, Turbines, Pressure, Flow (Dynamics), Pressure transducers, Wakes, Airfoils, Computation, Pressure measurement
Journal Articles

High Resolution Heat Transfer Measurements on the Stator Endwall of an Axial Turbine

Benoit Laveau, Reza S. Abhari, Michael E. Crawford, Ewald Lutum
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2015, 137(4): 041005.
Paper No: TURBO-14-1195
https://doi.org/10.1115/1.4028431
Published Online: October 28, 2014
View Article titled, High Resolution Heat Transfer Measurements on the Stator Endwall of an Axial Turbine
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Topics: Flow (Dynamics), Heat transfer, Heat transfer coefficients, Resolution (Optics), Temperature, Turbines, Wall temperature
Proceedings Papers

High Resolution Heat Transfer Measurements on the Stator Endwall of an Axial Turbine

Benoit Laveau, Reza S. Abhari, Michael E. Crawford, Ewald Lutum
Proc. ASME. GT2014, Volume 5B: Heat Transfer, V05BT14A010, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-26105
https://doi.org/10.1115/GT2014-26105
View Paper titled, High Resolution Heat Transfer Measurements on the Stator Endwall of an Axial Turbine
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Topics: Heat transfer, Resolution (Optics), Stators, Turbines, Flow (Dynamics), Temperature, Heat transfer coefficients, Wall temperature, Airfoils, Boundary-value problems