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Ali A. Ameri
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Journal Articles

Design of Stress Constrained SiC/SiC Ceramic Matrix Composite Turbine Blades

Robert J. Boyle, Pritheesh Gnanaselvam, Ankur H. Parikh, Ali A. Ameri, Jeffrey P. Bons, Vinod K. Nagpal
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2021, 143(5): 051013.
Paper No: GTP-20-1527
https://doi.org/10.1115/1.4049776
Published Online: March 11, 2021
View Article titled, Design of Stress Constrained SiC/SiC Ceramic Matrix Composite Turbine Blades
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Topics: Blades, Stress, Rotors, Clearances (Engineering), Pressure, Ceramic matrix composites
Proceedings Papers

Design of Stress Constrained SiC/SiC Ceramic Matrix Composite Turbine Blades

Robert J. Boyle, Pritheesh Gnanaselvam, Ankur H. Parikh, Ali A. Ameri, Jeffrey P. Bons, Vinod K. Nagpal
Proc. ASME. GT2020, Volume 3: Ceramics; Coal, Biomass, Hydrogen, and Alternative Fuels, V003T02A003, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15067
https://doi.org/10.1115/GT2020-15067
View Paper titled, Design of Stress Constrained SiC/SiC Ceramic Matrix Composite Turbine Blades
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Topics: Composite materials, Design, Silicon carbide ceramics, Stress, Turbine blades, Blades, Clearances (Engineering), Aircraft engines, Annulus, Ceramic matrix composites
Proceedings Papers

A Comparison of Tip Gap Loss Sensitivity for Shrouded vs. Unshrouded Turbine Rotors

William V. Banks, Ali A. Ameri, Robert J. Boyle, Jeffrey P. Bons
Proc. ASME. GT2019, Volume 2C: Turbomachinery, V02CT41A037, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91747
https://doi.org/10.1115/GT2019-91747
View Paper titled, A Comparison of Tip Gap Loss Sensitivity for Shrouded vs. Unshrouded Turbine Rotors
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Topics: Rotors, Turbines, Blades, Clearances (Engineering), Aircraft engines, Boundary-value problems, Flow (Dynamics), High pressure (Physics), NASA, Pressure
Proceedings Papers

Shrouded CMC Rotor Blades for High Pressure Turbine Applications

Robert J. Boyle, Lucas M. Agricola, Ankur H. Parikh, Ali A. Ameri, Vinod K. Nagpal
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT41A028, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76827
https://doi.org/10.1115/GT2018-76827
View Paper titled, Shrouded CMC Rotor Blades for High Pressure Turbine Applications
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Topics: Blades, Ceramic matrix composites, High pressure (Physics), Rotors, Turbines, Stress, Pressure, Density, Clearances (Engineering), Metals
Proceedings Papers

Effects of Turbulence Intensity and Scale on Turbine Blade Heat Transfer

Robert J. Boyle, Ali A. Ameri
Proc. ASME. GT2015, Volume 5B: Heat Transfer, V05BT13A022, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43597
https://doi.org/10.1115/GT2015-43597
View Paper titled, Effects of Turbulence Intensity and Scale on Turbine Blade Heat Transfer
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Topics: Heat transfer, Turbine blades, Turbulence, Blades, Reynolds number, Film cooling, Rotors, Boundary layers, Engines, Flow (Dynamics)
Proceedings Papers

Transition Modeling Effects on Turbine Rotor Blade Heat Transfer Predictions

Ali A. Ameri, Andrea Arnone
Proc. ASME. GT1994, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A007, June 13–16, 1994
Publisher: American Society of Mechanical Engineers
Paper No: 94-GT-022
https://doi.org/10.1115/94-GT-022
View Paper titled, Transition Modeling Effects on Turbine Rotor Blade Heat Transfer Predictions
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Topics: Blades, Heat transfer, Modeling, Rotors, Turbines, Algebra, Computation, Reynolds number, Turbine blades, Turbulence
Proceedings Papers

Prediction of Turbine Blade Passage Heat Transfer Using a Zero and a Two-Equation Turbulence Model

Ali A. Ameri, Andrea Arnone
Proc. ASME. GT1994, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A015, June 13–16, 1994
Publisher: American Society of Mechanical Engineers
Paper No: 94-GT-122
https://doi.org/10.1115/94-GT-122
View Paper titled, Prediction of Turbine Blade Passage Heat Transfer Using a Zero and a Two-Equation Turbulence Model
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Topics: Heat transfer, Turbine blades, Turbulence, Algebra, Blades, Cascades (Fluid dynamics), Computation, Economics , Reynolds number, Turbines
Proceedings Papers

Comparison of Two-Equation Turbulence Models for Prediction of Heat Transfer on Film-Cooled Turbine Blades

Vijay K. Garg, Ali A. Ameri
Proc. ASME. GT1997, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T09A004, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-024
https://doi.org/10.1115/97-GT-024
View Paper titled, Comparison of Two-Equation Turbulence Models for Prediction of Heat Transfer on Film-Cooled Turbine Blades
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Topics: Heat transfer, Turbine blades, Turbulence, Blades, Heat transfer coefficients, Rotors, Computers, Suction, Cooling, Film cooling
Proceedings Papers

Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine: Part 1 — Experimental Results

Ronald S. Bunker, Jeremy C. Bailey, Ali A. Ameri
Proc. ASME. GT1999, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A049, June 7–10, 1999
Publisher: American Society of Mechanical Engineers
Paper No: 99-GT-169
https://doi.org/10.1115/99-GT-169
View Paper titled, Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine: Part 1 — Experimental Results
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Topics: Blades, Energy generation, Flow (Dynamics), Gas turbines, Heat transfer, Airfoils, Cascades (Fluid dynamics), Pressure, Heat transfer coefficients, Mach number
Proceedings Papers

A Three-Dimensional Coupled Internal/External Simulation of a Film-Cooled Turbine Vane

James D. Heidmann, David L. Rigby, Ali A. Ameri
Proc. ASME. GT1999, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A053, June 7–10, 1999
Publisher: American Society of Mechanical Engineers
Paper No: 99-GT-186
https://doi.org/10.1115/99-GT-186
View Paper titled, A Three-Dimensional Coupled Internal/External Simulation of a Film-Cooled Turbine Vane
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Topics: Simulation, Turbines, Film cooling, Flow (Dynamics), Geometry, Heat flux, Heat transfer coefficients, Computation, Coolants, Flux (Metallurgy)
Proceedings Papers

Two-Equation Turbulence Models for Prediction of Heat Transfer on a Transonic Turbine Blade

Vijay K. Garg, Ali A. Ameri
Proc. ASME. GT2001, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A044, June 4–7, 2001
Publisher: American Society of Mechanical Engineers
Paper No: 2001-GT-0165
https://doi.org/10.1115/2001-GT-0165
View Paper titled, Two-Equation Turbulence Models for Prediction of Heat Transfer on a Transonic Turbine Blade
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Topics: Heat transfer, Turbine blades, Turbulence, Suction, Blades, Computation, Vortices, Shear stress
Proceedings Papers

Validation of a CFD Methodology for Variable Speed Power Turbine Relevant Conditions

Ali A. Ameri, Paul W. Giel, Ashlie B. McVetta
Proc. ASME. GT2013, Volume 6B: Turbomachinery, V06BT37A027, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-95030
https://doi.org/10.1115/GT2013-95030
View Paper titled, Validation of a CFD Methodology for Variable Speed Power Turbine Relevant Conditions
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Topics: Computational fluid dynamics, Turbines, Flow (Dynamics), Pressure, Cascades (Fluid dynamics), Heat transfer, Reynolds number, Turbulence
Journal Articles

Deposition With Hot Streaks in an Uncooled Turbine Vane Passage

Brian Casaday, Robin Prenter, Carlos Bonilla, Michael Lawrence, Carey Clum, Ali A. Ameri, Jeffrey P. Bons
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2014, 136(4): 041017.
Paper No: TURBO-13-1127
https://doi.org/10.1115/1.4025215
Published Online: October 24, 2013
View Article titled, Deposition With Hot Streaks in an Uncooled Turbine Vane Passage
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Topics: Flow (Dynamics), Particulate matter, Temperature, Turbines, Viscosity, Pressure, Coal
Proceedings Papers

Acoustic Analysis of the NREL Phase VI Wind Turbine

Yng-Ru Chen, Ali A. Ameri, J. Iwan D. Alexander
Proc. ASME. IMECE2012, Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D, 3151-3152, November 9–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2012-87495
https://doi.org/10.1115/IMECE2012-87495
View Paper titled, Acoustic Analysis of the NREL Phase VI Wind Turbine
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Topics: Acoustics, Wind turbines, Aerodynamic noise, Computer simulation
Proceedings Papers

Use of Transition Modeling to Enable the Computation of Losses for Variable-Speed Power Turbine

Ali A. Ameri
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 2243-2254, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69591
https://doi.org/10.1115/GT2012-69591
View Paper titled, Use of Transition Modeling to Enable the Computation of Losses for Variable-Speed Power Turbine
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Topics: Computation, Modeling, Turbines, Flow (Dynamics), Heat transfer, Blades, Cascades (Fluid dynamics), Engines, Flat plates, NASA
Journal Articles

Numerical Investigation of Ash Deposition on Nozzle Guide Vane Endwalls

Brian P. Casaday, Ali A. Ameri, Jeffrey P. Bons
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2013, 135(3): 032001.
Paper No: GTP-12-1287
https://doi.org/10.1115/1.4007736
Published Online: February 11, 2013
View Article titled, Numerical Investigation of Ash Deposition on Nozzle Guide Vane Endwalls
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Topics: Flow (Dynamics), Particulate matter, Viscosity, Nozzle guide vanes, Simulation, Pressure
Proceedings Papers

Analysis of a Concept for a Low Wind Speed Tolerant Axial Wind Turbine

Ali A. Ameri, Majid Rashidi
Proc. ASME. GT2011, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Wind Turbine Technology, 849-856, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46102
https://doi.org/10.1115/GT2011-46102
View Paper titled, Analysis of a Concept for a Low Wind Speed Tolerant Axial Wind Turbine
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Topics: Wind turbines, Wind velocity, Wind, Turbines, Rotors, Computational fluid dynamics, Design, Flow (Dynamics)
Proceedings Papers

A Correlation Approach to Predicting Film Cooled Turbine Vane Heat Transfer

Robert J. Boyle, Ali A. Ameri
Proc. ASME. GT2010, Volume 4: Heat Transfer, Parts A and B, 1841-1856, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-23597
https://doi.org/10.1115/GT2010-23597
View Paper titled, A Correlation Approach to Predicting Film Cooled Turbine Vane Heat Transfer
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Topics: Heat transfer, Turbines, Film cooling, Reynolds number, Engines, Pressure, Turbine blades, Turbulence
Proceedings Papers

Acoustic Analysis of the NREL Phase VI Wind Turbine

Kirsten Ranft, Ali A. Ameri, J. Iwan D. Alexander, Edmane Envia
Proc. ASME. GT2010, Volume 5: Industrial and Cogeneration; Microturbines and Small Turbomachinery; Oil and Gas Applications; Wind Turbine Technology, 911-922, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-23785
https://doi.org/10.1115/GT2010-23785
View Paper titled, Acoustic Analysis of the NREL Phase VI Wind Turbine
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Topics: Acoustics, Wind turbines, Blades, Flow (Dynamics), Noise (Sound), Aerodynamic noise, Chords (Trusses), Computation, Resolution (Optics), Rotation
Journal Articles

Comparison of Steady and Unsteady RANS Heat Transfer Simulations of Hub and Endwall of a Turbine Blade Passage

Lamyaa A. El-Gabry, Ali A. Ameri
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2011, 133(3): 031010.
https://doi.org/10.1115/1.4002412
Published Online: November 15, 2010
View Article titled, Comparison of Steady and Unsteady RANS Heat Transfer Simulations of Hub and Endwall of a Turbine Blade Passage
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Topics: Heat transfer, Pressure, Temperature, Wakes, Blades, Heat flux, Simulation