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Proceedings Papers

LES Analysis of Loss Anomaly of a Turbine Blade With Large Trailing Edge Radius

Kenji Miki, Ali Ameri, Paul Giel
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A020, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128243
https://doi.org/10.1115/GT2024-128243
View Paper titled, LES Analysis of Loss Anomaly of a Turbine Blade With Large Trailing Edge Radius
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Topics: Ceramic matrix composites, Turbine blades, Vortex shedding, Pressure, Reynolds number, Waves, Wakes, Blades, Aerodynamics, Cascades (Fluid dynamics)
Journal Articles

Numerical Investigation of the Effect of Trailing Edge Thickness of Simulated Ceramic Matrix Composite Blades on Loss Profiles

Kenji Miki, Ali Ameri
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2024, 146(9): 091009.
Paper No: TURBO-22-1269
https://doi.org/10.1115/1.4065184
Published Online: April 16, 2024
View Article titled, Numerical Investigation of the Effect of Trailing Edge Thickness of Simulated Ceramic Matrix Composite Blades on Loss Profiles
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Topics: Blades, Ceramic matrix composites, Pressure, Reynolds number, Reynolds-averaged Navier–Stokes equations, Turbulence, Large eddy simulation, Wakes, Flow (Dynamics), Boundary layers
Proceedings Papers

The Effect of Trailing Edge Grid Resolution in Large-Eddy Simulations

Kenji Miki, Ali Ameri
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A014, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102276
https://doi.org/10.1115/GT2023-102276
View Paper titled, The Effect of Trailing Edge Grid Resolution in Large-Eddy Simulations
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Topics: Ceramic matrix composites, Large eddy simulation, Resolution (Optics), Blades, Pressure, Suction, Wakes, Alloys, Bubbles, Cascades (Fluid dynamics)
Proceedings Papers

Numerical Investigation of the Effect of Trailing Edge Thickness of Simulated CMC Blades on Loss Profiles

Kenji Miki, Ali Ameri
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A017, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82335
https://doi.org/10.1115/GT2022-82335
View Paper titled, Numerical Investigation of the Effect of Trailing Edge Thickness of Simulated CMC Blades on Loss Profiles
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Topics: Blades, Ceramic matrix composites, Turbulence
Journal Articles

Improved Prediction of Losses With Large Eddy Simulation in a Low-Pressure Turbine

Kenji Miki, Ali Ameri
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2022, 144(7): 071002.
Paper No: TURBO-21-1207
https://doi.org/10.1115/1.4053234
Published Online: February 24, 2022
View Article titled, Improved Prediction of Losses With Large Eddy Simulation in a Low-Pressure Turbine
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Topics: Pressure, Turbulence, Wakes, Separation (Technology), Flow (Dynamics), Blades, Turbines, Suction, Emission spectroscopy, Spectroscopy
Proceedings Papers

Improved Prediction of Losses With Large Eddy Simulation in a Low-Pressure Turbine

Kenji Miki, Ali Ameri
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT39A007, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59095
https://doi.org/10.1115/GT2021-59095
View Paper titled, Improved Prediction of Losses With Large Eddy Simulation in a Low-Pressure Turbine
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Topics: Emission spectroscopy, Large eddy simulation, Pressure, Separation (Technology), Spectroscopy, Turbines, Turbulence, Wakes, Flow (Dynamics), Blades
Journal Articles

Large-Eddy Simulation of Variable Speed Power Turbine Cascade With Inflow Turbulence

Kenji Miki, Ali Ameri
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2021, 143(8): 081006.
Paper No: TURBO-20-1355
https://doi.org/10.1115/1.4050437
Published Online: April 26, 2021
View Article titled, Large-Eddy Simulation of Variable Speed Power Turbine Cascade With Inflow Turbulence
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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Inflow, Pressure, Separation (Technology), Suction, Turbines, Turbulence, Blades, Large eddy simulation
Journal Articles

Experimental Investigation of Innovative Cooling Schemes on an Additively Manufactured Engine Scale Turbine Nozzle Guide Vane

Mohammad A. Hossain, Ali Ameri, James W. Gregory, Jeffrey P. Bons
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2021, 143(5): 051004.
Paper No: TURBO-20-1232
https://doi.org/10.1115/1.4049618
Published Online: April 5, 2021
View Article titled, Experimental Investigation of Innovative Cooling Schemes on an Additively Manufactured Engine Scale Turbine Nozzle Guide Vane
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Topics: Coolants, Cooling, Nozzle guide vanes, Pressure, Design, Suction, Film cooling, Engines, Turbines
Proceedings Papers

Large-Eddy Simulation of the Variable Speed Power Turbine Cascade With Inflow Turbulence

Kenji Miki, Ali Ameri
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A002, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14140
https://doi.org/10.1115/GT2020-14140
View Paper titled, Large-Eddy Simulation of the Variable Speed Power Turbine Cascade With Inflow Turbulence
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Topics: Cascades (Fluid dynamics), Inflow, Large eddy simulation, Separation (Technology), Turbines, Turbulence
Proceedings Papers

Experimental Investigation of Innovative Cooling Schemes on an Additively Manufactured Engine Scale Turbine Nozzle Guide Vane

Mohammad A. Hossain, Ali Ameri, James W. Gregory, Jeffrey P. Bons
Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT13A023, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15707
https://doi.org/10.1115/GT2020-15707
View Paper titled, Experimental Investigation of Innovative Cooling Schemes on an Additively Manufactured Engine Scale Turbine Nozzle Guide Vane
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Topics: Additive manufacturing, Cooling, Engines, Nozzle guide vanes, Turbines, Design, Film cooling, Suction, Flow (Dynamics), Architecture
Journal Articles

Sweeping Jet Film Cooling at High Blowing Ratio on a Turbine Vane

Mohammad A. Hossain, Ali Ameri, James W. Gregory, Jeffrey P. Bons
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2020, 142(12): 121010.
Paper No: TURBO-20-1048
https://doi.org/10.1115/1.4047396
Published Online: December 2, 2020
View Article titled, Sweeping Jet Film Cooling at High Blowing Ratio on a Turbine Vane
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Topics: Boundary layers, Coolants, Cooling, Film cooling, Flow (Dynamics), Geometry, Suction, Turbines, Turbulence, Heat transfer
Journal Articles

Challenges Associated With Replicating Rotor Blade Deposition in a Non-Rotating Annular Cascade

Christopher P. Bowen, Ali Ameri, Jeffrey P. Bons
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2020, 142(9): 091003.
Paper No: TURBO-20-1053
https://doi.org/10.1115/1.4047399
Published Online: August 21, 2020
View Article titled, Challenges Associated With Replicating Rotor Blade Deposition in a Non-Rotating Annular Cascade
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Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Particulate matter, Rotors, Pressure
Proceedings Papers

Challenges Associated With Replicating Rotor Blade Deposition in a Non-Rotating Annular Cascade

Christopher P. Bowen, Ali Ameri, Jeffrey P. Bons
Proc. ASME. GT2019, Volume 2D: Turbomachinery, V02DT47A020, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91910
https://doi.org/10.1115/GT2019-91910
View Paper titled, Challenges Associated With Replicating Rotor Blade Deposition in a Non-Rotating Annular Cascade
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Topics: Blades, Cascades (Fluid dynamics), Rotors, Particulate matter, Flow (Dynamics), Engines, Particle collisions, Fluids, Gas turbines, Particle size
Proceedings Papers

Sweeping Jet Film Cooling at High Blowing Ratio on a Turbine Vane

Mohammad A. Hossain, Ali Ameri, James W. Gregory, Jeffrey P. Bons
Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT19A021, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91696
https://doi.org/10.1115/GT2019-91696
View Paper titled, Sweeping Jet Film Cooling at High Blowing Ratio on a Turbine Vane
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Topics: Film cooling, Turbines, Coolants, Boundary layers, Turbulence, Adiabatic cooling, Cascades (Fluid dynamics), Cooling, Geometry, Large eddy simulation
Journal Articles

Sweeping Jet Film Cooling on a Turbine Vane

Mohammad A. Hossain, Lucas Agricola, Ali Ameri, James W. Gregory, Jeffrey P. Bons
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2019, 141(3): 031007.
Paper No: TURBO-18-1257
https://doi.org/10.1115/1.4042070
Published Online: January 16, 2019
View Article titled, Sweeping Jet Film Cooling on a Turbine Vane
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Topics: Cascades (Fluid dynamics), Convection, Coolants, Cooling, Film cooling, Flow (Dynamics), Pressure, Suction, Turbines, Turbulence
Proceedings Papers

Turbine Vane Leading Edge Impingement Cooling With a Sweeping Jet

Lucas Agricola, Mohammad A. Hossain, Ali Ameri, James W. Gregory, Jeffrey P. Bons
Proc. ASME. GT2018, Volume 5A: Heat Transfer, V05AT16A017, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-77073
https://doi.org/10.1115/GT2018-77073
View Paper titled, Turbine Vane Leading Edge Impingement Cooling With a Sweeping Jet
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Topics: Impingement cooling, Turbines, Flow (Dynamics), Pressure drop, Turbulence, Cascades (Fluid dynamics), Cooling, Engines, Geometry, Heat transfer
Proceedings Papers

Implicit-LES Simulation of Variable-Speed Power Turbine Cascade for Low Free-Stream Turbulence Conditions

Ali Ameri
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT41A032, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-77120
https://doi.org/10.1115/GT2018-77120
View Paper titled, Implicit-LES Simulation of Variable-Speed Power Turbine Cascade for Low Free-Stream Turbulence Conditions
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Topics: Cascades (Fluid dynamics), Simulation, Turbines, Turbulence, Flow (Dynamics), Blades, Pressure, Reynolds number, Design, Separation (Technology)
Proceedings Papers

Sweeping Jet Film Cooling on a Turbine Vane

Mohammad A. Hossain, Lucas Agricola, Ali Ameri, James W. Gregory, Jeffrey P. Bons
Proc. ASME. GT2018, Volume 5C: Heat Transfer, V05CT19A035, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-77099
https://doi.org/10.1115/GT2018-77099
View Paper titled, Sweeping Jet Film Cooling on a Turbine Vane
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Topics: Film cooling, Turbines, Pressure, Cascades (Fluid dynamics), Cooling, Convection, Flow (Dynamics), Heat flux, Heat transfer, Probes
Journal Articles

Experimental and Numerical Investigation of Sweeping Jet Film Cooling

Mohammad A. Hossain, Robin Prenter, Ryan K. Lundgreen, Ali Ameri, James W. Gregory, Jeffrey P. Bons
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2018, 140(3): 031009.
Paper No: TURBO-17-1202
https://doi.org/10.1115/1.4038690
Published Online: December 28, 2017
View Article titled, Experimental and Numerical Investigation of Sweeping Jet Film Cooling
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Topics: Convection, Coolants, Cooling, Discharge coefficient, Film cooling, Flow (Dynamics), Turbulence, Temperature, Oscillations, Vortices
Proceedings Papers

Experimental Characterization of Reverse-Oriented Film Cooling

Robin Prenter, Mohammad A. Hossain, Lucas Agricola, Ali Ameri, Jeffrey P. Bons
Proc. ASME. GT2017, Volume 5C: Heat Transfer, V05CT19A025, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64731
https://doi.org/10.1115/GT2017-64731
View Paper titled, Experimental Characterization of Reverse-Oriented Film Cooling
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Topics: Experimental characterization, Film cooling, Heat transfer, Heat transfer coefficients, Turbulence, Coolants, Density, Flow (Dynamics), Flow visualization, Heat flux