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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
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2021, 143(5): 051013.
Paper No: GTP-20-1527
DOI: 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
Paper No: GT2020-15067
DOI: https://doi.org/10.1115/GT2020-15067
View Paper titled, Design of Stress Constrained SiC/SiC Ceramic Matrix Composite Turbine Blades
Click here to open pdf in another window PDF for Design of Stress Constrained SiC/SiC Ceramic Matrix Composite Turbine Blades
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
Paper No: GT2019-91747
DOI: https://doi.org/10.1115/GT2019-91747
View Paper titled, A Comparison of Tip Gap Loss Sensitivity for Shrouded vs. Unshrouded Turbine Rotors
Click here to open pdf in another window PDF for A Comparison of Tip Gap Loss Sensitivity for Shrouded vs. Unshrouded Turbine Rotors
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
Paper No: GT2018-76827
DOI: 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
Paper No: GT2015-43597
DOI: https://doi.org/10.1115/GT2015-43597
View Paper titled, Effects of Turbulence Intensity and Scale on Turbine Blade Heat Transfer
Click here to open pdf in another window PDF for Effects of Turbulence Intensity and Scale on Turbine Blade Heat Transfer
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
Paper No: 94-GT-022
DOI: https://doi.org/10.1115/94-GT-022
View Paper titled, Transition Modeling Effects on Turbine Rotor Blade Heat Transfer Predictions
Click here to open pdf in another window PDF for Transition Modeling Effects on Turbine Rotor Blade Heat Transfer Predictions
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
Paper No: 94-GT-122
DOI: 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
Click here to open pdf in another window PDF for Prediction of Turbine Blade Passage Heat Transfer Using a Zero and a Two-Equation Turbulence Model
Topics: Heat transfer, Turbine blades, Turbulence, Algebra, Blades, Cascades (Fluid dynamics), Computation, Economics , Reynolds number, Turbines
Proceedings Papers

Grid Orthogonality Effects on Predicted Turbine Midspan Heat Transfer and Performance

R. J. Boyle, A. A. Ameri
Proc. ASME. GT1994, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A016, June 13–16, 1994
Paper No: 94-GT-123
DOI: https://doi.org/10.1115/94-GT-123
View Paper titled, Grid Orthogonality Effects on Predicted Turbine Midspan Heat Transfer and Performance
Click here to open pdf in another window PDF for Grid Orthogonality Effects on Predicted Turbine Midspan Heat Transfer and Performance
Topics: Heat transfer, Turbines, Flow (Dynamics), Pressure, Stators
Proceedings Papers

Prediction of Unshrouded Rotor Blade Tip Heat Transfer

A. A. Ameri, E. Steinthorsson
Proc. ASME. GT1995, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A037, June 5–8, 1995
Paper No: 95-GT-142
DOI: https://doi.org/10.1115/95-GT-142
View Paper titled, Prediction of Unshrouded Rotor Blade Tip Heat Transfer
Click here to open pdf in another window PDF for Prediction of Unshrouded Rotor Blade Tip Heat Transfer
Topics: Blades, Heat transfer, Rotors, Turbines, Channel flow, Computation, Computers, Engines, Fuels, High pressure (Physics)
Proceedings Papers

Internal Passage Heat Transfer Prediction Using Multiblock Grids and a k-ω Turbulence Model

David L. Rigby, A. A. Ameri, E. Steinthorsson
Proc. ASME. GT1996, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A017, June 10–13, 1996
Paper No: 96-GT-188
DOI: https://doi.org/10.1115/96-GT-188
View Paper titled, Internal Passage Heat Transfer Prediction Using Multiblock Grids and a k-ω Turbulence Model
Click here to open pdf in another window PDF for Internal Passage Heat Transfer Prediction Using Multiblock Grids and a k-ω Turbulence Model
Topics: Heat transfer, Turbulence, Computer simulation, Ducts, Flow (Dynamics), Reynolds number
Proceedings Papers

Analysis of Gas Turbine Rotor Blade Tip and Shroud Heat Transfer

A. A. Ameri, E. Steinthorsson
Proc. ASME. GT1996, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A018, June 10–13, 1996
Paper No: 96-GT-189
DOI: https://doi.org/10.1115/96-GT-189
View Paper titled, Analysis of Gas Turbine Rotor Blade Tip and Shroud Heat Transfer
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Topics: Blades, Gas turbines, Heat transfer, Rotors, Boundary layers, Computers, Engineering simulation, Navier-Stokes equations, Rotation, Simulation
Proceedings Papers

Numerical Prediction of Heat Transfer in a Channel With Ribs and Bleed

David L. Rigby, E. Steinthorsson, A. A. Ameri
Proc. ASME. GT1997, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T09A078, June 2–5, 1997
Paper No: 97-GT-431
DOI: https://doi.org/10.1115/97-GT-431
View Paper titled, Numerical Prediction of Heat Transfer in a Channel With Ribs and Bleed
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Topics: Heat transfer, Turbulence, Computer simulation, Flow (Dynamics), Reynolds number
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
Paper No: 97-GT-024
DOI: 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
Click here to open pdf in another window PDF for Comparison of Two-Equation Turbulence Models for Prediction of Heat Transfer on Film-Cooled Turbine Blades
Topics: Heat transfer, Turbine blades, Turbulence, Blades, Heat transfer coefficients, Rotors, Computers, Suction, Cooling, Film cooling
Proceedings Papers

Effect of Squealer Tip on Rotor Heat Transfer and Efficiency

A. A. Ameri, E. Steinthorsson, David L. Rigby
Proc. ASME. GT1997, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T09A016, June 2–5, 1997
Paper No: 97-GT-128
DOI: https://doi.org/10.1115/97-GT-128
View Paper titled, Effect of Squealer Tip on Rotor Heat Transfer and Efficiency
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Topics: Heat transfer, Rotors, Flow (Dynamics), Blades, Cavities, Gas turbines, Geometry, Turbines, Turbulence
Proceedings Papers

Effects of Tip Clearance and Casing Recess on Heat Transfer and Stage Efficiency in Axial Turbines

A. A. Ameri, E. Steinthorsson, David L. Rigby
Proc. ASME. GT1998, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A066, June 2–5, 1998
Paper No: 98-GT-369
DOI: https://doi.org/10.1115/98-GT-369
View Paper titled, Effects of Tip Clearance and Casing Recess on Heat Transfer and Stage Efficiency in Axial Turbines
Click here to open pdf in another window PDF for Effects of Tip Clearance and Casing Recess on Heat Transfer and Stage Efficiency in Axial Turbines
Topics: Clearances (Engineering), Heat transfer, Turbines, Blades, Flow (Dynamics), Stress, Suction, Gas turbines, Geometry, Heat
Proceedings Papers

Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine: Part 2 — Simulation Results

A. A. Ameri, R. S. Bunker
Proc. ASME. GT1999, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A086, June 7–10, 1999
Paper No: 99-GT-283
DOI: https://doi.org/10.1115/99-GT-283
View Paper titled, Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine: Part 2 — Simulation Results
Click here to open pdf in another window PDF for Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine: Part 2 — Simulation Results
Topics: Blades, Energy generation, Flow (Dynamics), Gas turbines, Heat transfer, Simulation results, Convection, Geometry, Heating, Modeling
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
Paper No: 99-GT-186
DOI: https://doi.org/10.1115/99-GT-186
View Paper titled, A Three-Dimensional Coupled Internal/External Simulation of a Film-Cooled Turbine Vane
Click here to open pdf in another window PDF for A Three-Dimensional Coupled Internal/External Simulation of a Film-Cooled Turbine Vane
Topics: Simulation, Turbines, Film cooling, Flow (Dynamics), Geometry, Heat flux, Heat transfer coefficients, Computation, Coolants, Flux (Metallurgy)
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
Paper No: 99-GT-169
DOI: 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
Click here to open pdf in another window PDF for Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine: Part 1 — Experimental Results
Topics: Blades, Energy generation, Flow (Dynamics), Gas turbines, Heat transfer, Airfoils, Cascades (Fluid dynamics), Pressure, Heat transfer coefficients, Mach number
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
Paper No: 2001-GT-0165
DOI: 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
Click here to open pdf in another window PDF for Two-Equation Turbulence Models for Prediction of Heat Transfer on a Transonic Turbine Blade
Topics: Heat transfer, Turbine blades, Turbulence, Suction, Blades, Computation, Vortices, Shear stress
Proceedings Papers

Heat Transfer and Flow on the Blade Tip of a Gas Turbine Equipped With a Mean-Camberline Strip

A. A. Ameri
Proc. ASME. GT2001, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A039, June 4–7, 2001
Paper No: 2001-GT-0156
DOI: https://doi.org/10.1115/2001-GT-0156
View Paper titled, Heat Transfer and Flow on the Blade Tip of a Gas Turbine Equipped With a Mean-Camberline Strip
Click here to open pdf in another window PDF for Heat Transfer and Flow on the Blade Tip of a Gas Turbine Equipped With a Mean-Camberline Strip
Topics: Blades, Flow (Dynamics), Gas turbines, Heat transfer, Strips, Convection, Energy generation, Geometry, Leakage, Leakage flows