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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 Ng, Hongzhou Xu, Michael Fox, Jun LI

J. Turbomach.

Paper No: TURBO-22-1050

DOI: https://doi.org/10.1115/1.4062180

Published Online: March 21, 2023

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Topics: Cavities, Computational fluid dynamics, Cooling, Film cooling, Heat transfer, Leakage, Nozzle guide vanes, Turbochargers

Proceedings Papers

Experimental Investigation of Gas Turbine Axial Diffuser Performance: Part II — Effect of Inlet Flow Profiles at On- and Off-Design Conditions

Kenneth Brown, Stephen Guillot, Wing Ng, Lee Iksang, Kim Dongil, Giwon Hong

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT35A001, June 7–11, 2021

Paper No: GT2021-03719

DOI: https://doi.org/10.1115/GT2021-03719

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Topics: Design, Diffusers, Flow (Dynamics), Gas turbines, Pressure, Reynolds number

Proceedings Papers

Effects of Freestream Turbulence Intensity, Turbulence Length Scale, and Exit Reynolds Number on Vane Endwall Secondary Flow and Heat Transfer in a Transonic Turbine Cascade

Zhigang Li, Bo Bai, Luxuan Liu, Jun Li, Shuo Mao, Wing Ng, Hongzhou Xu, Michael Fox

Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT13A013, September 21–25, 2020

Paper No: GT2020-14639

DOI: https://doi.org/10.1115/GT2020-14639

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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Heat transfer, Reynolds number, Turbines, Turbulence, Stress, Combustion chambers, Gas turbines, Mach number

Proceedings Papers

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

Zhigang Li, Bo Bai, Jun Li, Shuo Mao, Wing Ng, Hongzhou Xu, Michael Fox

Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A071, September 21–25, 2020

Paper No: GT2020-16160

DOI: https://doi.org/10.1115/GT2020-16160

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Topics: Cooling, Flow (Dynamics), Heat transfer, Turbines, Coolants, Film cooling, Turbulence, Computational fluid dynamics, Cascades (Fluid dynamics), Chords (Trusses)

Proceedings Papers

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

Bo Bai, Zhigang Li, Jun Li, Shuo Mao, Wing Ng, Hongzhou Xu, Michael Fox

Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A070, September 21–25, 2020

Paper No: GT2020-16154

DOI: https://doi.org/10.1115/GT2020-16154

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Topics: Film cooling, Geometry, Heat transfer, Design, Flow (Dynamics), Gas turbines, Stress, Turbulence, Combustion chambers, Computational fluid dynamics

Proceedings Papers

Experimental Investigation of Gas Turbine Axial Diffuser Performance: Part I — Parametric Analysis of Influential Variables

Kenneth Brown, Stephen Guillot, Wing Ng, Lee Iksang, Kim Dongil, Giwon Hong

Proc. ASME. GT2020, Volume 2D: Turbomachinery, V02DT36A016, September 21–25, 2020

Paper No: GT2020-15299

DOI: https://doi.org/10.1115/GT2020-15299

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Topics: Design, Diffusers, Flow (Dynamics), Gas turbines, Kinetic energy, Pressure

Proceedings Papers

Effects on Heat Transfer Coefficient and Adiabatic Effectiveness in Combined Backside and Film Cooling With Short-Hole Geometry

Renzo La Rosa, Jaideep Pandit, Wing Ng, Brett Barker

Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT19A018, June 17–21, 2019

Paper No: GT2019-91522

DOI: https://doi.org/10.1115/GT2019-91522

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Topics: Film cooling, Geometry, Heat transfer coefficients, Cooling, Flow (Dynamics), Coolants, Heat transfer, Reynolds number, Computer software, Density

Journal Articles

Heat Transfer Performance of a Transonic Turbine Blade Passage in the Presence of Leakage Flow Through Upstream Slot and Mateface Gap With Endwall Contouring

Arnab Roy, Sakshi Jain, Srinath V. Ekkad, Wing Ng, Andrew S. Lohaus, Michael E. Crawford, Santosh Abraham

J. Turbomach. December 2017, 139(12): 121006.

Paper No: TURBO-17-1101

DOI: https://doi.org/10.1115/1.4037909

Published Online: October 3, 2017

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Topics: Heat transfer, Leakage flows, Coolants, Flow (Dynamics)

Journal Articles

Effect of Endwall Contouring on a Transonic Turbine Blade Passage: Heat Transfer Performance

Kapil V. Panchal, Santosh Abraham, Arnab Roy, Srinath V. Ekkad, Wing Ng, Andrew S. Lohaus, Michael E. Crawford

J. Turbomach. January 2017, 139(1): 011009.

Paper No: TURBO-16-1061

DOI: https://doi.org/10.1115/1.4034411

Published Online: September 20, 2016

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Topics: Computational fluid dynamics, Geometry, Heat transfer, Temperature, Mach number, Design, Turbines, Simulation, Turbine blades, Pressure

Proceedings Papers

Preliminary Experimental Investigation of Initial Onset of Sand Deposition in the Turbine Section of Gas Turbines

Andrew Boulanger, Hardik Patel, John Hutchinson, William DeShong, Weibin Xu, Wing Ng, Srinath Ekkad

Proc. ASME. GT2016, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A003, June 13–17, 2016

Paper No: GT2016-56059

DOI: https://doi.org/10.1115/GT2016-56059

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Topics: Gas turbines, Sands, Turbines, Particulate matter, Temperature, Damage, Dust, Engines, Erosion, Flow (Dynamics)

Journal Articles

A Diagnostic Technique for Particle Characterization Using Laser Light Extinction

Kris Barboza, Lin Ma, K. Todd Lowe, Srinath Ekkad, Wing Ng

J. Eng. Gas Turbines Power. November 2016, 138(11): 111601.

Paper No: GTP-15-1466

DOI: https://doi.org/10.1115/1.4033468

Published Online: May 17, 2016

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Topics: Lasers, Particulate matter, Wavelength, Particle size

Proceedings Papers

A Diagnostic Technique for Particle Characterization Using Laser Light Extinction

Kris Barboza, Lin Ma, K. Todd Lowe, Srinath Ekkad, Wing Ng

Proc. ASME. GT2015, Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy; Honors and Awards, V006T05A021, June 15–19, 2015

Paper No: GT2015-43347

DOI: https://doi.org/10.1115/GT2015-43347

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Topics: Lasers, Particulate matter, Aircraft, Engines, Absorption, Density, Disperse systems, Dust, Electromagnetic scattering, Latex

Journal Articles

Temperature Ratio Effects on Bluff-Body Wake Dynamics Using Large Eddy Simulation and Proper Orthogonal Decomposition

Ryan Blanchard, Wing Ng, Uri Vandsburger

J. Eng. Gas Turbines Power. December 2015, 137(12): 122601.

Paper No: GTP-14-1576

DOI: https://doi.org/10.1115/1.4030383

Published Online: June 2, 2015

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Topics: Chemiluminescence, Combustion, Dynamics (Mechanics), Engineering simulation, Flames, Flow (Dynamics), Heat, Large eddy simulation, Principal component analysis, Simulation

Proceedings Papers

Flow Randomness and Tip Losses in Transonic Rotors

John Alday, D. J. Osborne, Mary Beth Morris, Wing Ng, Jeff Gertz

Proc. ASME. GT1993, Volume 3A: General, V03AT15A040, May 24–27, 1993

Paper No: 93-GT-189

DOI: https://doi.org/10.1115/93-GT-189

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Topics: Chaos, Flow (Dynamics), Rotors, Blades, Wakes, Fans, Probes, Axial flow, Pressure, Shapes

Proceedings Papers

Aerodynamic Performance of a Transonic Turbine Blade Passage in Presence of Upstream Slot and Mateface Gap With Endwall Contouring

Sakshi Jain, Arnab Roy, Wing Ng, Srinath Ekkad, Andrew S. Lohaus, Farzad Taremi

Proc. ASME. GT2014, Volume 2C: Turbomachinery, V02CT38A036, June 16–20, 2014

Paper No: GT2014-26475

DOI: https://doi.org/10.1115/GT2014-26475

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Topics: Airfoils, Cascades (Fluid dynamics), Coolants, Design, Film cooling, Flow (Dynamics), Heat transfer, Heat transfer coefficients, High pressure (Physics), Leakage flows

Journal Articles

Simulating Bluff-Body Flameholders: On the Use of Proper Orthogonal Decomposition for Combustion Dynamics Validation

Ryan Blanchard, A. J. Wickersham, Lin Ma, Wing Ng, Uri Vandsburger

J. Eng. Gas Turbines Power. December 2014, 136(12): 121504.

Paper No: GTP-14-1154

DOI: https://doi.org/10.1115/1.4027558

Published Online: July 2, 2014

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Topics: Chemiluminescence, Combustion, Dynamics (Mechanics), Flames, Flow (Dynamics), Heat, Large eddy simulation, Principal component analysis, Simulation, Turbulence

Journal Articles

Simulating Bluff-Body Flameholders: On the Use of Proper Orthogonal Decomposition for Wake Dynamics Validation

Ryan Blanchard, Wing Ng, Todd K. Lowe, Uri Vandsburger

J. Eng. Gas Turbines Power. December 2014, 136(12): 122603.

Paper No: GTP-14-1119

DOI: https://doi.org/10.1115/1.4027556

Published Online: July 2, 2014

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Topics: Dynamics (Mechanics), Flow (Dynamics), Gutters, Large eddy simulation, Principal component analysis, Simulation, Turbulence, Wakes, Boundary layers, Boundary-value problems

Proceedings Papers

Effect of Upstream Purge Slot on a Transonic Turbine Blade Passage: Part 1 — Aerodynamic Performance

Dorian M. Blot, Arnab Roy, Srinath V. Ekkad, Wing Ng, Andrew S. Lohaus, Michael E. Crawford

Proc. ASME. GT2013, Volume 3B: Heat Transfer, V03BT13A023, June 3–7, 2013

Paper No: GT2013-94591

DOI: https://doi.org/10.1115/GT2013-94591

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Topics: Airfoils, Blades, Boundary layers, Cascades (Fluid dynamics), Chords (Trusses), Computational fluid dynamics, Coolants, Design, Engines, Film cooling

Proceedings Papers

Sand Transport in a Two Pass Internal Cooling Duct With Rib Turbulators

Sukhjinder Singh, Colin Reagle, Jacob Delimont, Danesh Tafti, Wing Ng, Srinath Ekkad

Proc. ASME. HT2012, Volume 1: Heat Transfer in Energy Systems; Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Transport Phenomena in Materials Processing and Manufacturing; Heat and Mass Transfer in Biotechnology; Environmental Heat Transfer; Visualization of Heat Transfer; Education and Future Directions in Heat Transfer, 727-735, July 8–12, 2012

Paper No: HT2012-58100

DOI: https://doi.org/10.1115/HT2012-58100

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Topics: Cooling, Ducts, Sands, Particulate matter, Flow (Dynamics), Density, Dust, Geometry, Large eddy simulation, Roads

Proceedings Papers

Effect of Endwall Contouring on a Transonic Turbine Blade Passage: Part 2—Heat Transfer Performance

Kapil V. Panchal, Santosh Abraham, Srinath V. Ekkad, Wing Ng, Andrew S. Lohaus, Michael E. Crawford

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 151-161, June 11–15, 2012

Paper No: GT2012-68405

DOI: https://doi.org/10.1115/GT2012-68405

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Topics: Heat transfer, Turbine blades, Heat transfer coefficients, Turbines, Design, Mach number, Temperature, Blades, Cascades (Fluid dynamics), Computational fluid dynamics

Journal citation

NARROW

Manuscript

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

Experimental Investigation of Gas Turbine Axial Diffuser Performance: Part II — Effect of Inlet Flow Profiles at On- and Off-Design Conditions

Effects of Freestream Turbulence Intensity, Turbulence Length Scale, and Exit Reynolds Number on Vane Endwall Secondary Flow and Heat Transfer in a Transonic Turbine Cascade

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

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

Experimental Investigation of Gas Turbine Axial Diffuser Performance: Part I — Parametric Analysis of Influential Variables

Effects on Heat Transfer Coefficient and Adiabatic Effectiveness in Combined Backside and Film Cooling With Short-Hole Geometry

Heat Transfer Performance of a Transonic Turbine Blade Passage in the Presence of Leakage Flow Through Upstream Slot and Mateface Gap With Endwall Contouring

Effect of Endwall Contouring on a Transonic Turbine Blade Passage: Heat Transfer Performance

Preliminary Experimental Investigation of Initial Onset of Sand Deposition in the Turbine Section of Gas Turbines

A Diagnostic Technique for Particle Characterization Using Laser Light Extinction

A Diagnostic Technique for Particle Characterization Using Laser Light Extinction

Temperature Ratio Effects on Bluff-Body Wake Dynamics Using Large Eddy Simulation and Proper Orthogonal Decomposition

Flow Randomness and Tip Losses in Transonic Rotors

Aerodynamic Performance of a Transonic Turbine Blade Passage in Presence of Upstream Slot and Mateface Gap With Endwall Contouring

Simulating Bluff-Body Flameholders: On the Use of Proper Orthogonal Decomposition for Combustion Dynamics Validation

Simulating Bluff-Body Flameholders: On the Use of Proper Orthogonal Decomposition for Wake Dynamics Validation

Effect of Upstream Purge Slot on a Transonic Turbine Blade Passage: Part 1 — Aerodynamic Performance

Sand Transport in a Two Pass Internal Cooling Duct With Rib Turbulators

Effect of Endwall Contouring on a Transonic Turbine Blade Passage: Part 2—Heat Transfer Performance

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