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Proceedings Papers

Investigation of a High-Pressure Turbine Stage in a High-Speed Rotating Transient Test Facility for Rotor Tip Study and a Parametric Study for Improved Heat Transfer Calculation

Deepanshu Singh, Paul F. Beard, David Cardwell, Kam S. Chana
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A005, June 13–17, 2022
Paper No: GT2022-80388
DOI: https://doi.org/10.1115/GT2022-80388
View Paper titled, Investigation of a High-Pressure Turbine Stage in a High-Speed Rotating Transient Test Facility for Rotor Tip Study and a Parametric Study for Improved Heat Transfer Calculation
Click here to open pdf in another window PDF for Investigation of a High-Pressure Turbine Stage in a High-Speed Rotating Transient Test Facility for Rotor Tip Study and a Parametric Study for Improved Heat Transfer Calculation
Topics: Heat transfer, High pressure (Physics), Rotors, Test facilities, Transients (Dynamics), Turbines, Nozzle guide vanes, Gages, Heat flux, Temperature profiles
Proceedings Papers

Predictions of Falling Wavy Films Based on the Depth Averaged Thin Film Model and Its Application to Aeroengine Bearing Chamber

K. Singh, A. Nicoli, R. Jefferson-Loveday, S. Ambrose, P. Paleo Cageao, K. Johnson, S. Mouvanal, J. Cao, A. Jacobs
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A001, June 13–17, 2022
Paper No: GT2022-78010
DOI: https://doi.org/10.1115/GT2022-78010
View Paper titled, Predictions of Falling Wavy Films Based on the Depth Averaged Thin Film Model and Its Application to Aeroengine Bearing Chamber
Click here to open pdf in another window PDF for Predictions of Falling Wavy Films Based on the Depth Averaged Thin Film Model and Its Application to Aeroengine Bearing Chamber
Topics: Bearings, Thin films, Engineering simulation, Simulation, Flow (Dynamics), Excitation, Film thickness, Momentum, Physics, Robustness
Proceedings Papers

Numerical Simulation of Multi-Scale Oil Films on a Rotating Cup Using VOF and Coupled Eulerian Thin-Film-DPM Approaches

A. Nicoli, K. Singh, R. Jefferson-Loveday, S. Ambrose, S. Mouvanal
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A033, June 13–17, 2022
Paper No: GT2022-82533
DOI: https://doi.org/10.1115/GT2022-82533
View Paper titled, Numerical Simulation of Multi-Scale Oil Films on a Rotating Cup Using VOF and Coupled Eulerian Thin-Film-DPM Approaches
Click here to open pdf in another window PDF for Numerical Simulation of Multi-Scale Oil Films on a Rotating Cup Using VOF and Coupled Eulerian Thin-Film-DPM Approaches
Topics: Bearings, Computer simulation, Drops, Engineering simulation, Engines, Film thickness, Flow (Dynamics), Fluids, Gas turbines, Geometry
Proceedings Papers

The Influence of Turbulence and Reynolds Number on Endwall Heat Transfer in a Vane Cascade

Maliha Yel Mahi, Emmanuel Chukwuemeka, Shaun Donovan, Forrest Ames, Yousef Kanani, Sumanta Acharya
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A022, June 13–17, 2022
Paper No: GT2022-83477
DOI: https://doi.org/10.1115/GT2022-83477
View Paper titled, The Influence of Turbulence and Reynolds Number on Endwall Heat Transfer in a Vane Cascade
Click here to open pdf in another window PDF for The Influence of Turbulence and Reynolds Number on Endwall Heat Transfer in a Vane Cascade
Topics: Cascades (Fluid dynamics), Heat transfer, Reynolds number, Turbulence, Flow (Dynamics), Chords (Trusses), Cooling, Design, Resolution (Optics), Suction
Proceedings Papers

Stability and Unbalance Analysis of Rigid Rotors Supported by Spiral Groove Bearings: Comparison of Different Approaches

Elia Iseli, Jürg Schiffmann
Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T19A013, June 7–11, 2021
Paper No: GT2021-59513
DOI: https://doi.org/10.1115/GT2021-59513
View Paper titled, Stability and Unbalance Analysis of Rigid Rotors Supported by Spiral Groove Bearings: Comparison of Different Approaches
Click here to open pdf in another window PDF for Stability and Unbalance Analysis of Rigid Rotors Supported by Spiral Groove Bearings: Comparison of Different Approaches
Topics: Bearings, Rotors, Stability, Compressibility, Gas bearings, Transients (Dynamics), Center of mass, Equations of motion, Excitation, Fluids
Proceedings Papers

Modelling of Partially Wetting Liquid Film Using an Enhanced Thin Film Model for Aero-Engine Bearing Chamber Applications

K. Singh, M. Sharabi, R. Jefferson-Loveday, S. Ambrose, C. Eastwick, J. Cao, A. Jacobs
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A046, September 21–25, 2020
Paper No: GT2020-15845
DOI: https://doi.org/10.1115/GT2020-15845
View Paper titled, Modelling of Partially Wetting Liquid Film Using an Enhanced Thin Film Model for Aero-Engine Bearing Chamber Applications
Click here to open pdf in another window PDF for Modelling of Partially Wetting Liquid Film Using an Enhanced Thin Film Model for Aero-Engine Bearing Chamber Applications
Topics: Aircraft engines, Bearings, Liquid films, Modeling, Thin films, Wetting, Flow (Dynamics), Film thickness, Cooling, Drying
Proceedings Papers

Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results

Thomas Kerr, Adolfo Delgado
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A025, September 21–25, 2020
Paper No: GT2020-15467
DOI: https://doi.org/10.1115/GT2020-15467
View Paper titled, Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results
Click here to open pdf in another window PDF for Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results
Topics: Thrust, Cavitation, Stress, Turbulence, Computational fluid dynamics, Modeling, Pressure, Algorithms, Bearings, Compressors
Proceedings Papers

Phantom Cooling Effects on Rotor Blade Surface Heat Flux in a Transonic Full Scale 1+1/2 Stage Rotating Turbine

Richard J. Anthony, John Finnegan, John P. Clark
Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT13A024, September 21–25, 2020
Paper No: GT2020-15836
DOI: https://doi.org/10.1115/GT2020-15836
View Paper titled, Phantom Cooling Effects on Rotor Blade Surface Heat Flux in a Transonic Full Scale 1+1/2 Stage Rotating Turbine
Click here to open pdf in another window PDF for Phantom Cooling Effects on Rotor Blade Surface Heat Flux in a Transonic Full Scale 1+1/2 Stage Rotating Turbine
Topics: Blades, Heat flux, Phantom cooling, Rotors, Turbines, Film cooling, High pressure (Physics), Pressure, Air Force, Leakage flows
Proceedings Papers

The Influence of Turbulence and Reynolds Number on Multiple Slot Film Cooling Over the Suction Surface

L. W. Soma, F. E. Ames, S. Acharya
Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A057, September 21–25, 2020
Paper No: GT2020-15619
DOI: https://doi.org/10.1115/GT2020-15619
View Paper titled, The Influence of Turbulence and Reynolds Number on Multiple Slot Film Cooling Over the Suction Surface
Click here to open pdf in another window PDF for The Influence of Turbulence and Reynolds Number on Multiple Slot Film Cooling Over the Suction Surface
Topics: Film cooling, Reynolds number, Suction, Turbulence, Cooling, Flow (Dynamics), Thin films, Geometry, Heat, Stress
Proceedings Papers

On the Development of a Pressure Actuated Leaf Seal for Turbomachinery Applications

Ernesto Pedraza-Valle, Georgios Papageorgiou, Aaron Bowsher, Peter F. Crudgington, Carl M. Sangan, Patrick S. Keogh, James A. Scobie
Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT15A009, June 17–21, 2019
Paper No: GT2019-90991
DOI: https://doi.org/10.1115/GT2019-90991
View Paper titled, On the Development of a Pressure Actuated Leaf Seal for Turbomachinery Applications
Click here to open pdf in another window PDF for On the Development of a Pressure Actuated Leaf Seal for Turbomachinery Applications
Topics: Pressure, Turbomachinery, Leakage, Clearances (Engineering), Pressure drop, Rotors, Design, Displacement, Eddies (Fluid dynamics), Eddy currents (Electricity)
Proceedings Papers

The Influence of Turbulence and Reynolds Number on Slot Film Cooling Over the Downstream Pressure Surface

L. W. Soma, F. E. Ames, S. Acharya
Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT19A007, June 17–21, 2019
Paper No: GT2019-90508
DOI: https://doi.org/10.1115/GT2019-90508
View Paper titled, The Influence of Turbulence and Reynolds Number on Slot Film Cooling Over the Downstream Pressure Surface
Click here to open pdf in another window PDF for The Influence of Turbulence and Reynolds Number on Slot Film Cooling Over the Downstream Pressure Surface
Topics: Film cooling, Pressure, Reynolds number, Turbulence, Cooling, Flow (Dynamics), Jets, Chords (Trusses), Coolants, Density
Proceedings Papers

3D Heat Transfer Assessment of Full-Scale Inlet Vanes With Surface-Optimized Film Cooling: Part 2 — Conjugate CFD Simulations

J. J. Johnson, J. P. Clark, R. A. Anthony, M. K. Ooten, R. H. Ni, W. H. Humber
Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT19A025, June 17–21, 2019
Paper No: GT2019-91864
DOI: https://doi.org/10.1115/GT2019-91864
View Paper titled, 3D Heat Transfer Assessment of Full-Scale Inlet Vanes With Surface-Optimized Film Cooling: Part 2 — Conjugate CFD Simulations
Click here to open pdf in another window PDF for 3D Heat Transfer Assessment of Full-Scale Inlet Vanes With Surface-Optimized Film Cooling: Part 2 — Conjugate CFD Simulations
Topics: Computational fluid dynamics, Engineering simulation, Film cooling, Heat transfer, Simulation, Cooling, Design, Engines, Pressure, Boundary-value problems
Proceedings Papers

Comparison of Thin Film Heat Flux Gauge Technologies Emphasizing Continuous-Duration Operation

Shawn Siroka, Reid A. Berdanier, Karen A. Thole, Kam S. Chana, Charles W. Haldeman, Richard J. Anthony
Proc. ASME. GT2019, Volume 5A: Heat Transfer, V05AT13A013, June 17–21, 2019
Paper No: GT2019-91817
DOI: https://doi.org/10.1115/GT2019-91817
View Paper titled, Comparison of Thin Film Heat Flux Gauge Technologies Emphasizing Continuous-Duration Operation
Click here to open pdf in another window PDF for Comparison of Thin Film Heat Flux Gauge Technologies Emphasizing Continuous-Duration Operation
Topics: Gages, Heat flux, Thin films, Sensors, Turbines, Nanofabrication, Temperature, Test facilities, Thermal properties, Ambiguity
Proceedings Papers

A New OpenFOAM Solver Capable of Modelling Oil Jet-Breakup and Subsequent Film Formation for Bearing Chamber Applications

Andrew Nicoli, Richard Jefferson-Loveday, Kathy Simmons
Proc. ASME. GT2019, Volume 2C: Turbomachinery, V02CT41A010, June 17–21, 2019
Paper No: GT2019-90264
DOI: https://doi.org/10.1115/GT2019-90264
View Paper titled, A New OpenFOAM Solver Capable of Modelling Oil Jet-Breakup and Subsequent Film Formation for Bearing Chamber Applications
Click here to open pdf in another window PDF for A New OpenFOAM Solver Capable of Modelling Oil Jet-Breakup and Subsequent Film Formation for Bearing Chamber Applications
Topics: Bearings, Modeling, Drops, Computational fluid dynamics, Particulate matter, Ducts, Film thickness, Momentum, Separation (Technology), Thin films
Proceedings Papers

Prediction of Film Thickness of an Aero-Engine Bearing Chamber Using Coupled VOF and Thin Film Model

Kuldeep Singh, Medhat Sharabi, Stephen Ambrose, Carol Eastwick, Richard Jefferson-Loveday
Proc. ASME. GT2019, Volume 2C: Turbomachinery, V02CT41A026, June 17–21, 2019
Paper No: GT2019-91314
DOI: https://doi.org/10.1115/GT2019-91314
View Paper titled, Prediction of Film Thickness of an Aero-Engine Bearing Chamber Using Coupled VOF and Thin Film Model
Click here to open pdf in another window PDF for Prediction of Film Thickness of an Aero-Engine Bearing Chamber Using Coupled VOF and Thin Film Model
Topics: Aircraft engines, Bearings, Film thickness, Thin films, Air flow, Fluids, Lubricants
Proceedings Papers

Assessment of an Enhanced Thin Film Model to Capture Wetting and Drying Behavior in an Aero-Engine Bearing Chamber

Kuldeep Singh, Medhat Sharabi, Stephen Ambrose, Carol Eastwick, Richard Jefferson-Loveday, Jing Cao, Adrian Jacobs
Proc. ASME. GT2019, Volume 2C: Turbomachinery, V02CT41A027, June 17–21, 2019
Paper No: GT2019-91323
DOI: https://doi.org/10.1115/GT2019-91323
View Paper titled, Assessment of an Enhanced Thin Film Model to Capture Wetting and Drying Behavior in an Aero-Engine Bearing Chamber
Click here to open pdf in another window PDF for Assessment of an Enhanced Thin Film Model to Capture Wetting and Drying Behavior in an Aero-Engine Bearing Chamber
Topics: Aircraft engines, Bearings, Drying, Thin films, Wetting, Film thickness, Lubricants, Air flow, Flat plates, Fluids
Proceedings Papers

A New Structural Bump Foil Model With Application From Start-Up to Full Operating Conditions

Mihai Arghir, Omar Benchekroun
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A014, June 17–21, 2019
Paper No: GT2019-90494
DOI: https://doi.org/10.1115/GT2019-90494
View Paper titled, A New Structural Bump Foil Model With Application From Start-Up to Full Operating Conditions
Click here to open pdf in another window PDF for A New Structural Bump Foil Model With Application From Start-Up to Full Operating Conditions
Topics: Algorithms, Bearings, Errors, Film thickness, Fluid pressure, Foil bearings, Friction, Lubrication, Manufacturing, Rotors
Proceedings Papers

Investigation of Thermal Effect on Bypass Transition on a High-Pressure Turbine Guide Vane

Tânia S. Cação Ferreira, Nikolaos Vasilakopoulos, Tony Arts
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT41A012, June 11–15, 2018
Paper No: GT2018-75676
DOI: https://doi.org/10.1115/GT2018-75676
View Paper titled, Investigation of Thermal Effect on Bypass Transition on a High-Pressure Turbine Guide Vane
Click here to open pdf in another window PDF for Investigation of Thermal Effect on Bypass Transition on a High-Pressure Turbine Guide Vane
Topics: Guide vanes, High pressure (Physics), Temperature effects, Turbines, Temperature, Heat flux, Mach number, Airfoils, Analog circuits, Chords (Trusses)
Proceedings Papers

Computationally Efficient Modelling of Oil Jet-Breakup and Film Formation for Bearing Chamber Applications

Jee Loong Hee, Kathy Simmons, Bruce Kakimpa, David Hann
Proc. ASME. GT2018, Volume 2C: Turbomachinery, V02CT42A031, June 11–15, 2018
Paper No: GT2018-76172
DOI: https://doi.org/10.1115/GT2018-76172
View Paper titled, Computationally Efficient Modelling of Oil Jet-Breakup and Film Formation for Bearing Chamber Applications
Click here to open pdf in another window PDF for Computationally Efficient Modelling of Oil Jet-Breakup and Film Formation for Bearing Chamber Applications
Topics: Bearings, Modeling, Drops, Particulate matter, Thin films, Film thickness, Momentum, Shear stress, Simulation, Transportation systems
Proceedings Papers

Aerodynamic Measurements and Analysis in a First Stage Nozzle Guide Vane Passage With Combustor Liner Cooling, Slot Film Cooling and Endwall Contouring

Mahmood H. Alqefl, Yong W. Kim, Hee-Koo Moon, Luzeng Zhang, Terrence W. Simon
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT41A022, June 11–15, 2018
Paper No: GT2018-76345
DOI: https://doi.org/10.1115/GT2018-76345
View Paper titled, Aerodynamic Measurements and Analysis in a First Stage Nozzle Guide Vane Passage With Combustor Liner Cooling, Slot Film Cooling and Endwall Contouring
Click here to open pdf in another window PDF for Aerodynamic Measurements and Analysis in a First Stage Nozzle Guide Vane Passage With Combustor Liner Cooling, Slot Film Cooling and Endwall Contouring
Topics: Combustion chambers, Cooling, Film cooling, Nozzle guide vanes, Flow (Dynamics), Coolants, Cascades (Fluid dynamics), Vorticity, Turbines, Turbulence