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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
Publisher: American Society of Mechanical Engineers
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
Publisher: American Society of Mechanical Engineers
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
Proceedings Papers

A Sensitivity Study of Gas Turbine Exhaust Diffuser-Collector Performance at Various Inlet Swirl Angles and Strut Stagger Angles

Michal P. Siorek, Stephen Guillot, Song Xue, Wing F. Ng
Proc. ASME. GT2017, Volume 2B: Turbomachinery, V02BT42A001, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63126
https://doi.org/10.1115/GT2017-63126
View Paper titled, A Sensitivity Study of Gas Turbine Exhaust Diffuser-Collector Performance at Various Inlet Swirl Angles and Strut Stagger Angles
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Topics: Diffusers, Exhaust systems, Gas turbines, Struts (Engineering), Design, Flow (Dynamics), Computational fluid dynamics, Turbines, Flow visualization, Industrial gases
Proceedings Papers

Experimental Based Empirical Model of the Initial Onset of Sand Deposits on Hastelloy-X From 1000°C to 1100°C Using Particle Tracking

Andrew Boulanger, John Hutchinson, Wing F. Ng, Srinath V. Ekkad, Matthew J. Keefe, Weibin Xu, Brett J. Barker, Kwen Hsu
Proc. ASME. GT2017, Volume 2D: Turbomachinery, V02DT48A015, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64480
https://doi.org/10.1115/GT2017-64480
View Paper titled, Experimental Based Empirical Model of the Initial Onset of Sand Deposits on Hastelloy-X From 1000°C to 1100°C Using Particle Tracking
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Topics: Dust, Metal surfaces, Particulate matter, Roads, Sands, Temperature
Proceedings Papers

An Experiment-Based Sticking Model for Heated Sand

Brett Barker, Kwen Hsu, Bruce Varney, Andrew Boulanger, John Hutchinson, Wing F. Ng
Proc. ASME. GT2017, Volume 2D: Turbomachinery, V02DT48A014, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64421
https://doi.org/10.1115/GT2017-64421
View Paper titled, An Experiment-Based Sticking Model for Heated Sand
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Topics: Sands, Particulate matter, Probability, Chaos, Gas turbines, Mechanical properties, Modeling, Particle size, Shapes, Temperature
Proceedings Papers

Effect of Combustor-Turbine Platform Misalignment on the Aerodynamics and Heat Transfer of an Axisymmetric Converging Vane Endwall at Transonic Conditions

David E. Mayo, Jr., Allan Arisi, Wing F. Ng, Zhigang Li, Jun Li, Hee-Koo Moon, Luzeng Zhang
Proc. ASME. GT2017, Volume 5A: Heat Transfer, V05AT13A011, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-65091
https://doi.org/10.1115/GT2017-65091
View Paper titled, Effect of Combustor-Turbine Platform Misalignment on the Aerodynamics and Heat Transfer of an Axisymmetric Converging Vane Endwall at Transonic Conditions
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Topics: Aerodynamics, Combustion chambers, Heat transfer, Turbines, Flow (Dynamics), Nozzle guide vanes, Design, Cascades (Fluid dynamics), Chords (Trusses), Computation
Proceedings Papers

An Experimental Investigation of the Performance Impact of Swirl on a Turbine Exhaust Diffuser/Collector for a Series of Diffuser Strut Geometries

Song Xue, Stephen Guillot, Wing F. Ng, Jon Fleming, K. Todd Lowe, Nihar Samal, Ulrich E. Stang
Proc. ASME. GT2015, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A010, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42325
https://doi.org/10.1115/GT2015-42325
View Paper titled, An Experimental Investigation of the Performance Impact of Swirl on a Turbine Exhaust Diffuser/Collector for a Series of Diffuser Strut Geometries
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Topics: Diffusers, Exhaust systems, Struts (Engineering), Turbines, Pressure, Flow (Dynamics), Engines, Flow visualization, Gas turbines, Geometry
Proceedings Papers

Effects of a Wake on Turbine Blade Heat Transfer in a Transonic Cascade

James H. Hale, Thomas E. Diller, Wing F. Ng
Proc. ASME. GT1997, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T09A018, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-130
https://doi.org/10.1115/97-GT-130
View Paper titled, Effects of a Wake on Turbine Blade Heat Transfer in a Transonic Cascade
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Topics: Cascades (Fluid dynamics), Heat transfer, Turbine blades, Wakes, Struts (Engineering), Heat transfer coefficients, Blades, Heat flux, Pressure, Suction
Proceedings Papers

The Experimental Studies of Improving the Aerodynamic Performance of a Turbine Exhaust System

Stephen Guillot, Wing F. Ng, Hans D. Hamm, Ulrich E. Stang, Kevin T. Lowe
Proc. ASME. GT2014, Volume 1B: Marine; Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V01BT27A012, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25481
https://doi.org/10.1115/GT2014-25481
View Paper titled, The Experimental Studies of Improving the Aerodynamic Performance of a Turbine Exhaust System
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Topics: Exhaust systems, Turbines, Pressure, Reynolds number, Geometry, Mach number, Testing, Computational fluid dynamics, Design, Diffusers
Proceedings Papers

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

Arnab Roy, Sakshi Jain, Srinath V. Ekkad, Wing F. Ng, Andrew S. Lohaus, Michael E. Crawford
Proc. ASME. GT2014, Volume 5B: Heat Transfer, V05BT13A048, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-26476
https://doi.org/10.1115/GT2014-26476
View Paper titled, Heat Transfer Performance of a Transonic Turbine Blade Passage in Presence of Leakage Flow Through Upstream Slot and Mateface Gap With Endwall Contouring
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Topics: Heat transfer, Leakage flows, Turbine blades, Coolants, Flow (Dynamics), Geometry, Temperature, Adiabatic cooling, Airfoils, Cascades (Fluid dynamics)
Proceedings Papers

Supersonic Through-Flow Fan Blade Cascade Studies: Part II — Riblet Effects

Todd Ninnemann, Wing F. Ng
Proc. ASME. GT2000, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T03A064, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0494
https://doi.org/10.1115/2000-GT-0494
View Paper titled, Supersonic Through-Flow Fan Blade Cascade Studies: Part II — Riblet Effects
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Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Design, Chords (Trusses), Pressure, Probes, Testing, Wakes, Wind tunnels
Proceedings Papers

Supersonic Through-Flow Fan Blade Cascade Studies: Part I — Baseline Cascade

Christopher J. Chesnakas, Wing F. Ng
Proc. ASME. GT2000, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T03A063, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0493
https://doi.org/10.1115/2000-GT-0493
View Paper titled, Supersonic Through-Flow Fan Blade Cascade Studies: Part I — Baseline Cascade
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Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Design, Shock (Mechanics), Instrumentation, Mach number, NASA, Photography, Pressure
Proceedings Papers

Effect of Upstream Purge Slot on a Transonic Turbine Blade Passage: Part 2 — Heat Transfer Performance

Arnab Roy, Dorian M. Blot, Srinath V. Ekkad, Wing F. Ng, Andrew S. Lohaus, Michael E. Crawford
Proc. ASME. GT2013, Volume 3B: Heat Transfer, V03BT13A021, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-94581
https://doi.org/10.1115/GT2013-94581
View Paper titled, Effect of Upstream Purge Slot on a Transonic Turbine Blade Passage: Part 2 — Heat Transfer Performance
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Topics: Heat transfer, Turbine blades, Flow (Dynamics), Cascades (Fluid dynamics), Coolants, Airfoils, Design, Mach number, Temperature, Transients (Dynamics)
Proceedings Papers

Simulated Syngas Ash Deposits on a Flat Plate Using Teflon and PVC Particles

Eric J. Wood, Wing F. Ng, Uri Vandsburger, Steve LePera
Proc. ASME. GT2010, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Education; Electric Power; Manufacturing Materials and Metallurgy, 563-569, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22445
https://doi.org/10.1115/GT2010-22445
View Paper titled, Simulated Syngas Ash Deposits on a Flat Plate Using Teflon and PVC Particles
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Topics: Flat plates, Particulate matter, Syngas
Proceedings Papers

A Three-Dimensional CFD Design Study of a Circulation Control Inlet Guide Vane for a Transonic Compressor

Sandra L. Gunter, Stephen A. Guillot, Wing F. Ng, S. Todd Bailie
Proc. ASME. GT2009, Volume 7: Turbomachinery, Parts A and B, 91-101, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59360
https://doi.org/10.1115/GT2009-59360
View Paper titled, A Three-Dimensional CFD Design Study of a Circulation Control Inlet Guide Vane for a Transonic Compressor
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Topics: Compressors, Computational fluid dynamics, Design, Inlet guide vanes, Flow turning, Mach number, Optimization, Airfoils, Geometry, Manufacturing
Proceedings Papers

Time Resolved DPIV in a Transonic Turbine Cascade

Samuel Raben, John Charonko, Wing F. Ng, Pavlos P. Vlachos
Proc. ASME. IMECE2008, Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C, 339-348, October 31–November 6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2008-68097
https://doi.org/10.1115/IMECE2008-68097
View Paper titled, Time Resolved DPIV in a Transonic Turbine Cascade
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Topics: Cascades (Fluid dynamics), Turbines, Errors, Flow (Dynamics), Principal component analysis, Simulation, Space, Turbulence, Uncertainty, Venturi tubes
Proceedings Papers

Spatiotemporal Development of Transitional Wall Jets

Samuel Raben, Wing F. Ng, Pavlos P. Vlachos
Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 369-378, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2008-55162
https://doi.org/10.1115/FEDSM2008-55162
View Paper titled, Spatiotemporal Development of Transitional Wall Jets
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Topics: Jets, Spatiotemporal phenomena, Turbulence, Energy transformation, Film cooling, Flow control, Particulate matter, Physics, Principal component analysis, Reynolds number
Proceedings Papers

Effects of Flow Control on Forced Response and Performance of a Transonic Compressor

S. Todd Bailie, Wing F. Ng, Alfred L. Wicks, William W. Copenhaver
Proc. ASME. GT2002, Volume 1: Turbo Expo 2002, 67-74, June 3–6, 2002
Publisher: American Society of Mechanical Engineers
Paper No: GT2002-30008
https://doi.org/10.1115/GT2002-30008
View Paper titled, Effects of Flow Control on Forced Response and Performance of a Transonic Compressor
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Topics: Compressors, Flow control, Rotors, Blades, Resonance, Stators, Flow (Dynamics), Vibration, Wakes, Engines
Proceedings Papers

Aerodynamic Design and Testing of Three Low Solidity Steam Turbine Nozzle Cascades

Bo Song, Wing F. Ng, Joseph A. Cotroneo, Douglas C. Hofer, Gunnar Siden
Proc. ASME. GT2004, Volume 5: Turbo Expo 2004, Parts A and B, 1099-1108, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-53329
https://doi.org/10.1115/GT2004-53329
View Paper titled, Aerodynamic Design and Testing of Three Low Solidity Steam Turbine Nozzle Cascades
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Topics: Design, Nozzles, Steam turbines, Testing, Mach number, Blades, Flow (Dynamics), Chords (Trusses), Boundary layers, Cascades (Fluid dynamics)
Proceedings Papers

Experimental Reduction of Transonic Fan Forced Response by IGV Flow Control

S. Todd Bailie, Wing F. Ng, William W. Copenhaver
Proc. ASME. GT2004, Volume 6: Turbo Expo 2004, 527-537, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-53975
https://doi.org/10.1115/GT2004-53975
View Paper titled, Experimental Reduction of Transonic Fan Forced Response by IGV Flow Control
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Topics: Flow control, Inlet guide vanes, Blades, Resonance, Rotors, Stators, Flow (Dynamics), Vibration, Compressors, Endurance limit