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Proceedings Papers

Predicting the Performance of Turbine Exhaust Diffuser-Collector Systems Across the Operating Range: Comparison of Lattice-Boltzmann Method Simulations With Experiments

Matthew Langford, Michal Siorek, Stephen Guillot, Wing F. Ng
Publisher: American Society of Mechanical Engineers
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT33A001, June 26–30, 2023
Paper No: GT2023-100867
https://doi.org/10.1115/GT2023-100867
View Paper titled, Predicting the Performance of Turbine Exhaust Diffuser-Collector Systems Across the Operating Range: Comparison of Lattice-Boltzmann Method Simulations With Experiments
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Topics: Computational fluid dynamics, Diffusers, Exhaust systems, Gas turbines, Lattice Boltzmann methods, Simulation, Turbines
Proceedings Papers

Analysis of C-Spec Particle Breakage in a Turbine Engine Particle Ingestion Test Cell

Tomas Vlach, Kristopher T. Olshefski, David J. Bunin, Alix M. Ehlers, Mark J. Caddick, K. Todd Lowe, Wing F. Ng
Publisher: American Society of Mechanical Engineers
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT31A002, June 26–30, 2023
Paper No: GT2023-101618
https://doi.org/10.1115/GT2023-101618
View Paper titled, Analysis of C-Spec Particle Breakage in a Turbine Engine Particle Ingestion Test Cell
Open the PDF for Analysis of C-Spec Particle Breakage in a Turbine Engine Particle Ingestion Test Cell in another window
Topics: Engines, Erosion, Gas turbines, Particulate matter
Journal Articles

Upstream Jet Cooling and Dual Cavity Slashface Leakage Cooling on a Transonic Nozzle Guide Vane Endwall

Shuo Mao, Daniel Van Hout, Kaiyuan Zhang, Jin Woo Lee, Wing F. Ng, Hongzhou Xu, Michael Fox, Jun Li
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. August 2023, 145(8): 081006.
Paper No: TURBO-22-1050
https://doi.org/10.1115/1.4062180
Published Online: April 3, 2023
View Article titled, Upstream Jet Cooling and Dual Cavity Slashface Leakage Cooling on a Transonic Nozzle Guide Vane Endwall
Open the PDF for Upstream Jet Cooling and Dual Cavity Slashface Leakage Cooling on a Transonic Nozzle Guide Vane Endwall in another window
Topics: Cavities, Computational fluid dynamics, Coolants, Cooling, Design, Film cooling, Flow (Dynamics), Heat transfer, Nozzle guide vanes, Suction
Journal Articles

Effects of Hole Blockage on Endwall Film Cooling and Vane Phantom Cooling Performances of a Transonic Turbine Vane

Bo Bai, Zhigang Li, Kaiyuan Zhang, Jun Li, Shuo Mao, Wing F. Ng
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2023, 145(4): 041001.
Paper No: GTP-22-1207
https://doi.org/10.1115/1.4056094
Published Online: December 8, 2022
View Article titled, Effects of Hole Blockage on Endwall Film Cooling and Vane Phantom Cooling Performances of a Transonic Turbine Vane
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Topics: Coolants, Film cooling, Phantom cooling, Flow (Dynamics), Cooling
Proceedings Papers

The Cooling Effect of Combustor Exit Louver Scheme on a Transonic Nozzle Guide Vane Endwall

Shuo Mao, Daniel Van Hout, Kaiyuan Zhang, Wing F. Ng, Hongzhou Xu, Michael Fox
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT11A007, June 13–17, 2022
Paper No: GT2022-82800
https://doi.org/10.1115/GT2022-82800
View Paper titled, The Cooling Effect of Combustor Exit Louver Scheme on a Transonic Nozzle Guide Vane Endwall
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Topics: Combustion chambers, Cooling, Nozzle guide vanes, Coolants, Cavities, Computational fluid dynamics, Cooling systems, Design, Engines, Flow (Dynamics)
Journal Articles

Effects of Upstream Step Geometries on Endwall Film Cooling and Phantom Cooling Performances of a Transonic Turbine Vane

Bo Bai, Zhigang Li, Jun Li, Shuo Mao, Wing F. Ng
Journal: Journal of Thermal Science and Engineering Applications
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. December 2022, 14(12): 121005.
Paper No: TSEA-22-1110
https://doi.org/10.1115/1.4055006
Published Online: August 24, 2022
View Article titled, Effects of Upstream Step Geometries on Endwall Film Cooling and Phantom Cooling Performances of a Transonic Turbine Vane
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Topics: Coolants, Film cooling, Geometry, Phantom cooling, Flow (Dynamics), Heat flux, Pressure, Cascades (Fluid dynamics)
Journal Articles

Turbine Vane Endwall Film Cooling and Pressure Side Phantom Cooling Performances With Upstream Coolant Flow at Various Injection Angles

Bo Bai, Zhigang Li, Jun Li, Shuo Mao, Wing F. Ng
Journal: Journal of Thermal Science and Engineering Applications
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. November 2022, 14(11): 111014.
Paper No: TSEA-22-1128
https://doi.org/10.1115/1.4054848
Published Online: July 18, 2022
View Article titled, Turbine Vane Endwall Film Cooling and Pressure Side Phantom Cooling Performances With Upstream Coolant Flow at Various Injection Angles
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Topics: Coolants, Density, Film cooling, Flow (Dynamics), Phantom cooling, Pressure, Temperature, Turbulence
Journal Articles

The Effects of Axisymmetric Convergent Contouring and Blowing Ratio on Endwall Film Cooling and Vane Pressure Side Surface Phantom Cooling Performance

Bo Bai, Zhigang Li, Jun Li, Shuo Mao, Wing F. Ng
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2022, 144(2): 021020.
Paper No: GTP-21-1228
https://doi.org/10.1115/1.4052500
Published Online: December 3, 2021
View Article titled, The Effects of Axisymmetric Convergent Contouring and Blowing Ratio on Endwall Film Cooling and Vane Pressure Side Surface Phantom Cooling Performance
Open the PDF for The Effects of Axisymmetric Convergent Contouring and Blowing Ratio on Endwall Film Cooling and Vane Pressure Side Surface Phantom Cooling Performance in another window
Topics: Coolants, Film cooling, Flow (Dynamics), Phantom cooling, Pressure, Shapes, Design, Heat transfer
Journal Articles

Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling Part 1—Effect of Density Ratio

Shuo Mao, Ridge Sibold, Wing F. Ng, Zhigang Li, Bo Bai, Hongzhou Xu, Michael Fox
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. May 2022, 144(5): 051003.
Paper No: TURBO-21-1101
https://doi.org/10.1115/1.4052754
Published Online: November 17, 2021
View Article titled, Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling Part 1—Effect of Density Ratio
Open the PDF for Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling Part 1—Effect of Density Ratio in another window
Topics: Coolants, Cooling, Density, Flow (Dynamics), Film cooling, Nozzle guide vanes, Heat transfer, Pressure, Computational fluid dynamics, Momentum
Journal Articles

Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling Part 2—Effect of Combustor-Nozzle Guide Vane Misalignment

Shuo Mao, Ridge Sibold, Wing F. Ng, Zhigang Li, Bo Bai, Hongzhou Xu, Michael Fox
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. May 2022, 144(5): 051004.
Paper No: TURBO-21-1102
https://doi.org/10.1115/1.4052738
Published Online: November 17, 2021
View Article titled, Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling Part 2—Effect of Combustor-Nozzle Guide Vane Misalignment
Open the PDF for Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling Part 2—Effect of Combustor-Nozzle Guide Vane Misalignment in another window
Topics: Combustion chambers, Coolants, Cooling, Film cooling, Flow (Dynamics), Heat transfer, Nozzle guide vanes, Vortices, Pressure, Design
Journal Articles

Endwall Heat Transfer and Cooling Performance of a Transonic Turbine Vane With Upstream Injection Flow

Zhigang Li, Bo Bai, Jun Li, Shuo Mao, Wing F. Ng, Hongzhou Xu, Michael Fox
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2022, 144(4): 041004.
Paper No: TURBO-20-1300
https://doi.org/10.1115/1.4052457
Published Online: November 5, 2021
View Article titled, Endwall Heat Transfer and Cooling Performance of a Transonic Turbine Vane With Upstream Injection Flow
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Topics: Coolants, Cooling, Film cooling, Flow (Dynamics), Heat transfer, Computational fluid dynamics, Turbulence, Turbines, Heat transfer coefficients
Journal Articles

Measurement Drift in 3-Hole Yaw Pressure Probes From 5 µ m Sand Fouling at 1050 °C

Edward J. Turner, Matthew F. Bogdan, Tyler M. O’Connell, Wing F. Ng, Kevin T. Lowe, Loren Crook, Richard Stevenson, James Roberts
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. March 2021, 143(3): 031009.
Paper No: TURBO-20-1214
https://doi.org/10.1115/1.4050069
Published Online: March 1, 2021
View Article titled, Measurement Drift in 3-Hole Yaw Pressure Probes From 5 µ m Sand Fouling at 1050 °C
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Topics: Calibration, Flow (Dynamics), Probes, Sands, Yaw, Wedges, Errors
Proceedings Papers

Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling: Part 1 — Effect of Density Ratio

Shuo Mao, Ridge A. Sibold, Stephen Lash, Wing F. Ng, Hongzhou Xu, Michael Fox
Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A031, September 21–25, 2020
Paper No: GT2020-14814
https://doi.org/10.1115/GT2020-14814
View Paper titled, Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling: Part 1 — Effect of Density Ratio
Open the PDF for Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling: Part 1 — Effect of Density Ratio in another window
Topics: Cooling, Density, Heat transfer, Nozzle guide vanes, Coolants, Engines, Flow (Dynamics), Heat flux, Momentum, Turbulence
Proceedings Papers

Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling: Part 2 — Effect of Combustor-NGV Misalignment

Ridge A. Sibold, Shuo Mao, Wing F. Ng, Hongzhou Xu, Michael Fox
Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A032, September 21–25, 2020
Paper No: GT2020-14818
https://doi.org/10.1115/GT2020-14818
View Paper titled, Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling: Part 2 — Effect of Combustor-NGV Misalignment
Open the PDF for Experimental Study of the Endwall Heat Transfer of a Transonic Nozzle Guide Vane With Upstream Jet Purge Cooling: Part 2 — Effect of Combustor-NGV Misalignment in another window
Topics: Combustion chambers, Cooling, Heat transfer, Nozzle guide vanes, Coolants, Turbines, Film cooling, Flow (Dynamics), Turbulence, Vortices
Journal Articles

The Effect of Step Misalignment on Purge Flow Cooling of Nozzle Guide Vane at Transonic Conditions

Luke Luehr, Ridge Sibold, Shuo Mao, Wing F. Ng, Zhigang Li, Hongzhou Xu, Michael Fox
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2020, 142(10): 101004.
Paper No: TURBO-20-1072
https://doi.org/10.1115/1.4047634
Published Online: September 11, 2020
View Article titled, The Effect of Step Misalignment on Purge Flow Cooling of Nozzle Guide Vane at Transonic Conditions
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Topics: Coolants, Cooling, Film cooling, Flow (Dynamics), Heat transfer, Boundary layers, Nozzle guide vanes
Proceedings Papers

The Effect of Step Misalignment on Purge Flow Cooling of Nozzle Guide Vane at Transonic Conditions

Luke Luehr, Ridge Sibold, Shuo Mao, Wing F. Ng, Zhigang Li, Hongzhou Xu, Michael Fox
Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT19A024, June 17–21, 2019
Paper No: GT2019-91810
https://doi.org/10.1115/GT2019-91810
View Paper titled, The Effect of Step Misalignment on Purge Flow Cooling of Nozzle Guide Vane at Transonic Conditions
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Topics: Cooling, Flow (Dynamics), Nozzle guide vanes, Film cooling, Coolants, Turbulence, Boundary layers, Cascades (Fluid dynamics), Chords (Trusses), Flow visualization
Proceedings Papers

Measurement Drift in 3-Hole Yaw Pressure Probes From 5 Micron Sand Fouling at 1050° C

Edward J. Turner, Matthew F. Bogdan, Tyler M. O’Connell, Wing F. Ng, Kevin T. Lowe, Loren Crook, Richard Stevenson, James Roberts
Proc. ASME. GT2019, Volume 2D: Turbomachinery, V02DT47A008, June 17–21, 2019
Paper No: GT2019-90880
https://doi.org/10.1115/GT2019-90880
View Paper titled, Measurement Drift in 3-Hole Yaw Pressure Probes From 5 Micron Sand Fouling at 1050° C
Open the PDF for Measurement Drift in 3-Hole Yaw Pressure Probes From 5 Micron Sand Fouling at 1050° C in another window
Topics: Pressure, Probes, Sands, Yaw, Errors, Flow (Dynamics), Calibration, Wedges, Dust, Gas turbines
Journal Articles

Effects of Upstream Step Geometry on Axisymmetric Converging Vane Endwall Secondary Flow and Heat Transfer at Transonic Conditions

Zhigang Li, Luxuan Liu, Jun Li, Ridge A. Sibold, Wing F. Ng, Hongzhou Xu, Michael Fox
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. December 2018, 140(12): 121008.
Paper No: TURBO-18-1178
https://doi.org/10.1115/1.4041294
Published Online: November 5, 2018
View Article titled, Effects of Upstream Step Geometry on Axisymmetric Converging Vane Endwall Secondary Flow and Heat Transfer at Transonic Conditions
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Topics: Flow (Dynamics), Geometry, Heat transfer, Stress, Cascades (Fluid dynamics), Suction, Turbulence, Computational fluid dynamics
Proceedings Papers

Review of Heated Sand Particle Deposition Models

Kwen Hsu, Brett Barker, Bruce Varney, Andrew Boulanger, Vy Nguyen, Wing F. Ng
Proc. ASME. GT2018, Volume 2D: Turbomachinery, V02DT47A005, June 11–15, 2018
Paper No: GT2018-75723
https://doi.org/10.1115/GT2018-75723
View Paper titled, Review of Heated Sand Particle Deposition Models
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Topics: Particulate matter, Sands, Aircraft engines, Computational fluid dynamics, Cooling, Damage, Dust, Engines, Failure, Geometry
Proceedings Papers

Effects of Upstream Step Geometry on Axisymmetric Converging Vane Endwall Secondary Flow and Heat Transfer at Transonic Conditions

Zhigang Li, Luxuan Liu, Jun Li, Ridge A. Sibold, Wing F. Ng, Hongzhou Xu, Michael Fox
Proc. ASME. GT2018, Volume 5C: Heat Transfer, V05CT22A005, June 11–15, 2018
Paper No: GT2018-76236
https://doi.org/10.1115/GT2018-76236
View Paper titled, Effects of Upstream Step Geometry on Axisymmetric Converging Vane Endwall Secondary Flow and Heat Transfer at Transonic Conditions
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Topics: Flow (Dynamics), Geometry, Heat transfer, Computational fluid dynamics, Stress, Heat transfer coefficients, Turbulence, Combustion chambers, Engineering simulation, Gas turbines