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Proceedings Papers

Reduced-Order Model of Aero-Thermal-Mechanical Interactions in Ultra High-Speed Micro Gas Turbines

Aniwat Tiralap, Choon S. Tan
Proc. ASME. GT2023, Volume 9: Microturbines, Turbochargers, and Small Turbomachines; Oil and Gas Applications, V009T18A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101838
https://doi.org/10.1115/GT2023-101838
View Paper titled, Reduced-Order Model of Aero-Thermal-Mechanical Interactions in Ultra High-Speed Micro Gas Turbines
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Topics: Micro gas turbines, Engines, Bearings, Clearances (Engineering), Thermal expansion, Cooling, Design, Flow (Dynamics), Computation, Deformation
Journal Articles

A Framework for Estimating Effects of Combustor Turbulence on Turbine Profile Loss Generation

Kanika Gakhar, Masha Folk, Edward M. Greitzer, Choon S. Tan
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2023, 145(3): 031018.
Paper No: TURBO-22-1247
https://doi.org/10.1115/1.4056407
Published Online: January 6, 2023
View Article titled, A Framework for Estimating Effects of Combustor Turbulence on Turbine Profile Loss Generation
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Topics: Combustion chambers, Turbulence, Turbines, Free stream turbulence, Boundary layers, Energy dissipation
Proceedings Papers

A Framework for Estimating Effects of Combustor Turbulence on Turbine Profile Loss Generation

Kanika Gakhar, Masha Folk, Edward M. Greitzer, Choon S. Tan
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A006, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80607
https://doi.org/10.1115/GT2022-80607
View Paper titled, A Framework for Estimating Effects of Combustor Turbulence on Turbine Profile Loss Generation
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Topics: Combustion chambers, Turbines, Turbulence, High pressure (Physics), Energy dissipation, Aircraft engines, Boundary layer turbulence, Boundary layers, Gas turbines, Gates (Closures)
Journal Articles

Characterization and Impact of Secondary Flows in a Discrete Passage Centrifugal Compressor Diffuser

David W. Erickson, Choon S. Tan, Michael Macrorie
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. July 2019, 141(7): 071009.
Paper No: TURBO-18-1352
https://doi.org/10.1115/1.4042646
Published Online: February 26, 2019
View Article titled, Characterization and Impact of Secondary Flows in a Discrete Passage Centrifugal Compressor Diffuser
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Topics: Boundary layers, Compressors, Diffusers, Flow (Dynamics), Pressure, Vortices, Computational fluid dynamics, Suction, Separation (Technology), Impellers
Proceedings Papers

Characterization and Impact of Secondary Flows in a Discrete Passage Centrifugal Compressor Diffuser

David W. Erickson, Choon S. Tan, Michael Macrorie
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT44A017, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76231
https://doi.org/10.1115/GT2018-76231
View Paper titled, Characterization and Impact of Secondary Flows in a Discrete Passage Centrifugal Compressor Diffuser
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Topics: Compressors, Diffusers, Flow (Dynamics), Vortices, Separation (Technology), Pressure, Boundary layers, Suction, Computation, Flow separation
Journal Articles

Loss Generation in Transonic Turbine Blading

Penghao Duan, Choon S. Tan, Andrew Scribner, Anthony Malandra
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2018, 140(4): 041006.
Paper No: TURBO-17-1155
https://doi.org/10.1115/1.4038689
Published Online: February 6, 2018
View Article titled, Loss Generation in Transonic Turbine Blading
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Topics: Blades, Boundary layers, Flow (Dynamics), Mach number, Shock (Mechanics), Turbines, Computation
Proceedings Papers

Loss Generation in Transonic Turbine Blading

Penghao Duan, Choon S. Tan, Andrew Scribner, Anthony Malandra
Proc. ASME. GT2017, Volume 2A: Turbomachinery, V02AT40A007, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63471
https://doi.org/10.1115/GT2017-63471
View Paper titled, Loss Generation in Transonic Turbine Blading
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Topics: Turbines, Mach number, Blades, Shock (Mechanics), Boundary layers, Reynolds-averaged Navier–Stokes equations, Flow (Dynamics), Turbine blades, Cascades (Fluid dynamics), Computation
Journal Articles

Characterizing Flow Effects of Ported Shroud Casing Treatment on Centrifugal Compressor Performance

George A. Christou, Choon S. Tan, Borislav T. Sirakov, Vai-Man Lei, Giuseppe Alescio
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. August 2017, 139(8): 081005.
Paper No: TURBO-16-1297
https://doi.org/10.1115/1.4035664
Published Online: March 21, 2017
View Article titled, Characterizing Flow Effects of Ported Shroud Casing Treatment on Centrifugal Compressor Performance
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Topics: Compressors, Flow (Dynamics), Impellers, Pressure
Journal Articles

Performance Metric for Turbine Stage Under Unsteady Pulsating Flow Environment

Jinwook Lee, Choon S. Tan, Borislav T. Sirakov, Hong-Sik Im, Martin Babak, Denis Tisserant, Chris Wilkins
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2017, 139(7): 072606.
Paper No: GTP-16-1562
https://doi.org/10.1115/1.4035630
Published Online: March 7, 2017
View Article titled, Performance Metric for Turbine Stage Under Unsteady Pulsating Flow Environment
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Topics: Entropy, Pulsatile flow, Storage, Turbines, Turbochargers, Unsteady flow, Cycles, Approximation, Flow (Dynamics)
Journal Articles

Performance Characterization of Twin-Scroll Turbine Stage for Vehicular Turbocharger Under Unsteady Pulsating Flow Environment

Jinwook Lee, Choon S. Tan, Borislav T. Sirakov, Hong-Sik Im, Martin Babak, Denis Tisserant, Chris Wilkins
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2017, 139(7): 072701.
Paper No: GTP-16-1561
https://doi.org/10.1115/1.4035629
Published Online: February 28, 2017
View Article titled, Performance Characterization of Twin-Scroll Turbine Stage for Vehicular Turbocharger Under Unsteady Pulsating Flow Environment
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Topics: Computational fluid dynamics, Diffusers, Flow (Dynamics), Modeling, Turbines, Wheels, Pressure, Errors, Turbochargers
Journal Articles

Effects of Rotor Tip Blade Loading Variation on Compressor Stage Performance

Aniwat Tiralap, Choon S. Tan, Eric Donahoo, Matthew Montgomery, Christian Cornelius
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2017, 139(5): 051006.
Paper No: TURBO-16-1227
https://doi.org/10.1115/1.4035252
Published Online: January 24, 2017
View Article titled, Effects of Rotor Tip Blade Loading Variation on Compressor Stage Performance
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Topics: Blades, Compressors, Flow (Dynamics), Leakage flows, Rotors, Stators, Leakage, Design
Proceedings Papers

Characterizing Flow Effects of Ported Shroud Casing Treatment on Centrifugal Compressor Performance

George A. Christou, Choon S. Tan, Borislav T. Sirakov, Vai-Man Lei, Giuseppe Alescio
Proc. ASME. GT2016, Volume 2D: Turbomachinery, V02DT42A026, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57070
https://doi.org/10.1115/GT2016-57070
View Paper titled, Characterizing Flow Effects of Ported Shroud Casing Treatment on Centrifugal Compressor Performance
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Topics: Compressors, Flow (Dynamics), Momentum, Approximation, Boundary-value problems, Diffusion (Physics), Impellers, Leakage flows, Physics, Pressure
Proceedings Papers

Performance Characterization of Twin Scroll Turbine Stage for Vehicular Turbocharger Under Unsteady Pulsating Flow Environment

Jinwook Lee, Choon S. Tan, Borislav T. Sirakov, Chris Wilkins, Hong-Sik Im, Martin Babak, Denis Tisserant
Proc. ASME. GT2016, Volume 2D: Turbomachinery, V02DT44A009, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56401
https://doi.org/10.1115/GT2016-56401
View Paper titled, Performance Characterization of Twin Scroll Turbine Stage for Vehicular Turbocharger Under Unsteady Pulsating Flow Environment
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Topics: Performance characterization, Pulsatile flow, Turbines, Turbochargers, Flow (Dynamics), Pressure, Computational fluid dynamics, Diffusers, Wheels, Acoustics
Proceedings Papers

Effects of Rotor Tip Blade Loading Variation on Compressor Stage Performance

Aniwat Tiralap, Choon S. Tan, Eric Donahoo, Matthew Montgomery, Christian Cornelius
Proc. ASME. GT2016, Volume 2A: Turbomachinery, V02AT37A045, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57727
https://doi.org/10.1115/GT2016-57727
View Paper titled, Effects of Rotor Tip Blade Loading Variation on Compressor Stage Performance
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Topics: Blades, Compressors, Rotors, Leakage flows, Flow (Dynamics), Stators, Leakage, Clearances (Engineering), Computation, Cycles
Proceedings Papers

Performance Metric for Turbine Stage Under Unsteady Pulsating Flow Environment

Jinwook Lee, Choon S. Tan, Borislav T. Sirakov, Chris Wilkins, Hong-Sik Im, Martin Babak, Denis Tisserant
Proc. ASME. GT2016, Volume 2D: Turbomachinery, V02DT44A006, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56343
https://doi.org/10.1115/GT2016-56343
View Paper titled, Performance Metric for Turbine Stage Under Unsteady Pulsating Flow Environment
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Topics: Pulsatile flow, Turbines, Entropy, Storage, Turbochargers, Combustion chambers, Engines, Explosions, Flow (Dynamics), Second law of thermodynamics
Journal Articles

Quantifying Loss Mechanisms in Turbine Tip Shroud Cavity Flows

Timothy R. Palmer, Choon S. Tan, Humberto Zuniga, David Little, Matthew Montgomery, Anthony Malandra
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. September 2016, 138(9): 091006.
Paper No: TURBO-15-1246
https://doi.org/10.1115/1.4032922
Published Online: April 12, 2016
View Article titled, Quantifying Loss Mechanisms in Turbine Tip Shroud Cavity Flows
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Topics: Cavities, Cavity flows, Flow (Dynamics), Rotors, Vortices, Turbines
Journal Articles

Forced Response of a Centrifugal Compressor Stage Due to the Impeller–Diffuser Interaction

Edward J. Walton, Choon S. Tan
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. September 2016, 138(9): 091004.
Paper No: TURBO-15-1293
https://doi.org/10.1115/1.4032838
Published Online: April 5, 2016
View Article titled, Forced Response of a Centrifugal Compressor Stage Due to the Impeller–Diffuser Interaction
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Topics: Airfoils, Blades, Diffusers, Impellers, Mode shapes, Disks, Springs, Compressors, Pressure
Proceedings Papers

Effects of Shroud Asymmetry on the Turbine Tip Shroud Cavity Flow Field

Timothy R. Palmer, Choon S. Tan, Matthew Montgomery, Anthony Malandra, David Little, Humberto Zuniga, Kunyuan Zhou
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT38A036, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43721
https://doi.org/10.1115/GT2015-43721
View Paper titled, Effects of Shroud Asymmetry on the Turbine Tip Shroud Cavity Flow Field
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Topics: Cavity flows, Turbines, Cavities, Flow (Dynamics), Vortices, Computation, Rotors, Vorticity
Proceedings Papers

Requirements and Limitations of Controlling Turbine Tip Shroud Cavity Flow Mixing With Bladelets on Rotating Shroud

Timothy R. Palmer, Choon S. Tan, Matthew Montgomery, Anthony Malandra, David Little, Humberto Zuniga, Kunyuan Zhou
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT38A037, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43732
https://doi.org/10.1115/GT2015-43732
View Paper titled, Requirements and Limitations of Controlling Turbine Tip Shroud Cavity Flow Mixing With Bladelets on Rotating Shroud
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Topics: Cavity flows, Turbines, Cavities, Blades, Diffusers, Flow (Dynamics), Reynolds number
Proceedings Papers

Forced Response of a Centrifugal Compressor Stage due to the Impeller-Diffuser Interaction

Edward J. Walton, Choon S. Tan
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT42A001, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42041
https://doi.org/10.1115/GT2015-42041
View Paper titled, Forced Response of a Centrifugal Compressor Stage due to the Impeller-Diffuser Interaction
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Topics: Compressors, Diffusers, Impellers, Blades, Disks, Airfoils, Boundary-value problems, Couplings, Manufacturing, Resonance