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Proceedings Papers

Numerical Observations of a Stall Phenomenon in the NASA CC3 Compressor

Michael Ni, Gregorio Robles Vega, Ron Ho Ni, John Clark, Michael List

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A004, June 13–17, 2022

Paper No: GT2022-78911

DOI: https://doi.org/10.1115/GT2022-78911

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Topics: Compressors, NASA, Engineering simulation, Simulation, Flow (Dynamics), Annulus, Approximation, Design, Diffusers, Numerical analysis

Proceedings Papers

Forced Response Prediction of Gas Turbine Rotor Blades

Gary R. Hilbert, Ron-Ho Ni, Ronald K. Takahashi

Proc. ASME. IMECE97, Analysis and Design Issues for Modern Aerospace Vehicles, 491-498, November 16–21, 1997

Paper No: IMECE1997-0750

DOI: https://doi.org/10.1115/IMECE1997-0750

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Topics: Blades, Gas turbines, Rotors, Airfoils, High cycle fatigue, Stress, Computational fluid dynamics, Engines, Failure, Resonance

Journal Articles

Effects of Downstream Vane Bowing and Asymmetry on Unsteadiness in a Transonic Turbine

John P. Clark, Richard J. Anthony, Michael K. Ooten, John M. Finnegan, P. Dean Johnson, Ron-Ho Ni

J. Turbomach. October 2018, 140(10): 101006.

Paper No: TURBO-18-1160

DOI: https://doi.org/10.1115/1.4040998

Published Online: September 28, 2018

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Topics: Airfoils, Blades, Design, Pressure, Shock (Mechanics), Suction, Turbines, Simulation

Proceedings Papers

Effects of Downstream Vane Bowing and Asymmetry on Unsteadiness in a Transonic Turbine

John P. Clark, Richard J. Anthony, Michael K. Ooten, John M. Finnegan, P. Dean Johnson, Ron-Ho Ni

Proc. ASME. GT2018, Volume 2A: Turbomachinery, V02AT45A029, June 11–15, 2018

Paper No: GT2018-76735

DOI: https://doi.org/10.1115/GT2018-76735

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Topics: Turbines, Blades, Design, Shock (Mechanics), Turbine blades, Airfoils, Annulus, Cycles, Engineering simulation, Gas turbines

Journal Articles

The Effect of Manufacturing Variations on Unsteady Interaction in a Transonic Turbine

John P. Clark, Joseph A. Beck, Alex A. Kaszynski, Angela Still, Ron-Ho Ni

J. Turbomach. May 2018, 140(6): 061007.

Paper No: TURBO-17-1197

DOI: https://doi.org/10.1115/1.4039361

Published Online: April 30, 2018

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Topics: Airfoils, Blades, Computational fluid dynamics, Geometry, Manufacturing, Pressure, Turbines, Shock (Mechanics), Wheels, Design

Proceedings Papers

The Effect of Manufacturing Variations on Unsteady Interaction in a Transonic Turbine

John P. Clark, Joseph A. Beck, Alex A. Kaszynski, Angela Still, Ron-Ho Ni

Proc. ASME. GT2017, Volume 2B: Turbomachinery, V02BT41A029, June 26–30, 2017

Paper No: GT2017-64075

DOI: https://doi.org/10.1115/GT2017-64075

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Topics: Manufacturing, Turbines, Computational fluid dynamics, Blades, Geometry, Turbine blades, Airfoils, Algorithms, Artificial neural networks, Casting

Proceedings Papers

Aerodynamic Damping Predictions for Oscillating Airfoils in Cascades Using Moving Meshes

Ron Ho Ni, William Humber, Michael Ni, Vincent R. Capece, Michael Ooten, John Clark

Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT34A012, June 13–17, 2016

Paper No: GT2016-57017

DOI: https://doi.org/10.1115/GT2016-57017

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Topics: Airfoils, Damping, Flow (Dynamics), Cascades (Fluid dynamics), Modeling, Numerical analysis, Pressure, Shock waves, Suction, Turbomachinery

Proceedings Papers

Comparison of Conjugate Heat Transfer Analysis of Flat Plate Film Cooling Arrays Against Experimental Data

William Humber, Ron-Ho Ni, Jamie Johnson, John Clark, Paul King

Proc. ASME. GT2015, Volume 5A: Heat Transfer, V05AT10A006, June 15–19, 2015

Paper No: GT2015-42398

DOI: https://doi.org/10.1115/GT2015-42398

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Topics: Film cooling, Flat plates, Heat transfer, Cooling, Engineering simulation, Geometry, Simulation, Flow (Dynamics), Fluids, Plates (structures)

Proceedings Papers

Comparison of Predictions From Conjugate Heat Transfer Analysis of a Film-Cooled Turbine Vane to Experimental Data

Ron-Ho Ni, William Humber, George Fan, John P. Clark, Richard J. Anthony, Jamie J. Johnson

Proc. ASME. GT2013, Volume 3B: Heat Transfer, V03BT11A013, June 3–7, 2013

Paper No: GT2013-94716

DOI: https://doi.org/10.1115/GT2013-94716

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Topics: Heat transfer, Turbines, Heat flux, Metals, Temperature, Air Force, Boundary-value problems, Fluids, Gages, Root cause analysis

Proceedings Papers

Performance Estimation of a Turbine Under Partial-Admission and Flow Pulsation Conditions at Inlet

Ron Ho Ni, William Humber, Michael Ni, Rolf Sondergaard, Mike Ooten

Proc. ASME. GT2013, Volume 6C: Turbomachinery, V06CT42A019, June 3–7, 2013

Paper No: GT2013-94811

DOI: https://doi.org/10.1115/GT2013-94811

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Topics: Flow (Dynamics), Turbines, Entropy, Pressure, Rotors, Temperature, Flow simulation, Fluids

Proceedings Papers

Conjugate Heat Transfer Analysis for a Film-Cooled Turbine Vane

Ron Ho Ni, William Humber, George Fan, P. Dean Johnson, Jim Downs, J. P. Clark, P. J. Koch

Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 423-434, June 6–10, 2011

Paper No: GT2011-45920

DOI: https://doi.org/10.1115/GT2011-45920

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Topics: Heat transfer, Turbines, Fluids, Metals, Temperature, Air Force, Airfoils, Computation, Computer simulation, Cooling

Journal Articles

A Rational Analysis of Periodic Flow Perturbation in Supersonic Two-Dimensional Cascade

Ron-Ho Ni

J. Eng. Gas Turbines Power. July 1979, 101(3): 431–439.

DOI: https://doi.org/10.1115/1.3446596

Published Online: July 1, 1979

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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Blades, Flat plates, Harmonic motion, Integral equations, Oscillations, Supersonic flow, Unsteady flow, Waves

Journal citation

NARROW

Numerical Observations of a Stall Phenomenon in the NASA CC3 Compressor

Forced Response Prediction of Gas Turbine Rotor Blades

Effects of Downstream Vane Bowing and Asymmetry on Unsteadiness in a Transonic Turbine

Effects of Downstream Vane Bowing and Asymmetry on Unsteadiness in a Transonic Turbine

The Effect of Manufacturing Variations on Unsteady Interaction in a Transonic Turbine

The Effect of Manufacturing Variations on Unsteady Interaction in a Transonic Turbine

Aerodynamic Damping Predictions for Oscillating Airfoils in Cascades Using Moving Meshes

Comparison of Conjugate Heat Transfer Analysis of Flat Plate Film Cooling Arrays Against Experimental Data

Comparison of Predictions From Conjugate Heat Transfer Analysis of a Film-Cooled Turbine Vane to Experimental Data

Performance Estimation of a Turbine Under Partial-Admission and Flow Pulsation Conditions at Inlet

Conjugate Heat Transfer Analysis for a Film-Cooled Turbine Vane

A Rational Analysis of Periodic Flow Perturbation in Supersonic Two-Dimensional Cascade

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