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Proceedings Papers

Evaluating Thin-Film Thermocouple Performance on Additively Manufactured Turbine Airfoils

Reid A. Berdanier, Margaret R. Nunn, Justin T. Brumberg, Michael D. Barringer, Scott Fishbone, Karen A. Thole
Proc. ASME. GT2024, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A017, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124155
https://doi.org/10.1115/GT2024-124155
View Paper titled, Evaluating Thin-Film Thermocouple Performance on Additively Manufactured Turbine Airfoils
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Topics: Additive manufacturing, Airfoils, Thermocouples, Thin films, Turbines, Sensors, Engines, Gas turbines, Hardware, Accuracy and precision
Proceedings Papers

The Role of the Working Fluid and Non-Ideal Thermodynamic Effects on Performance of Gas Lubricated Bearings

Wessel de Waart, Matteo Pini
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT22A017, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127645
https://doi.org/10.1115/GT2024-127645
View Paper titled, The Role of the Working Fluid and Non-Ideal Thermodynamic Effects on Performance of Gas Lubricated Bearings
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Topics: Bearings, Fluids, Gas bearings, Turbomachinery, Bulk modulus, Machinery, Rotors, Turbines, Vapors, Contamination
Proceedings Papers

Computationally Efficient Workflow for Conjugate Heat Transfer With LES for Gas Turbine Combustors

Ishan Verma, Sudhanshu Prasad, Krishna Zore, Sourabh Shrivastava
Proc. ASME. GT2023, Volume 7A: Heat Transfer — Combustors; Film Cooling, V07AT11A006, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103677
https://doi.org/10.1115/GT2023-103677
View Paper titled, Computationally Efficient Workflow for Conjugate Heat Transfer With LES for Gas Turbine Combustors
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Topics: Combustion chambers, Gas turbines, Heat transfer, Workflow, Cooling, Engineering simulation, Modeling, Simulation, Fluids, Radiation (Physics)
Proceedings Papers

Understanding Thermal Unsteadiness in Engine Representative Flows and Improved Methodologies for Derived Heat Transfer Calculations Using Thin-Film Gauges

Deepanshu Singh, Paul F. Beard, David Cardwell, Kam S. Chana
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A006, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101625
https://doi.org/10.1115/GT2023-101625
View Paper titled, Understanding Thermal Unsteadiness in Engine Representative Flows and Improved Methodologies for Derived Heat Transfer Calculations Using Thin-Film Gauges
Open the PDF for Understanding Thermal Unsteadiness in Engine Representative Flows and Improved Methodologies for Derived Heat Transfer Calculations Using Thin-Film Gauges in another window
Topics: Engines, Flow (Dynamics), Gages, Heat transfer, Thin films, Temperature profiles, Nozzle guide vanes, Temperature, Combustion chambers, Heat transfer coefficients
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80388
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
Open the 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 in another window
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78010
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
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82533
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
Open the PDF for Numerical Simulation of Multi-Scale Oil Films on a Rotating Cup Using VOF and Coupled Eulerian Thin-Film-DPM Approaches in another window
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83477
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
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59513
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
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Topics: Bearings, Rotors, Stability, Compressibility, Gas bearings, Transients (Dynamics), Center of mass, Equations of motion, Excitation, Fluids
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15467
https://doi.org/10.1115/GT2020-15467
View Paper titled, Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results
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Topics: Thrust, Cavitation, Stress, Turbulence, Computational fluid dynamics, Modeling, Pressure, Algorithms, Bearings, Compressors
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15845
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
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Topics: Aircraft engines, Bearings, Liquid films, Modeling, Thin films, Wetting, Flow (Dynamics), Film thickness, Cooling, Drying
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15836
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
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15619
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
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Topics: Film cooling, Reynolds number, Suction, Turbulence, Cooling, Flow (Dynamics), Thin films, Geometry, Heat, Stress
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90494
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
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Topics: Algorithms, Bearings, Errors, Film thickness, Fluid pressure, Foil bearings, Friction, Lubrication, Manufacturing, Rotors
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91817
https://doi.org/10.1115/GT2019-91817
View Paper titled, Comparison of Thin Film Heat Flux Gauge Technologies Emphasizing Continuous-Duration Operation
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Topics: Gages, Heat flux, Thin films, Sensors, Turbines, Nanofabrication, Temperature, Test facilities, Thermal properties, Ambiguity
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90991
https://doi.org/10.1115/GT2019-90991
View Paper titled, On the Development of a Pressure Actuated Leaf Seal for Turbomachinery Applications
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90508
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
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91864
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
Open the PDF for 3D Heat Transfer Assessment of Full-Scale Inlet Vanes With Surface-Optimized Film Cooling: Part 2 — Conjugate CFD Simulations in another window
Topics: Computational fluid dynamics, Engineering simulation, Film cooling, Heat transfer, Simulation, Cooling, Design, Engines, Pressure, Boundary-value problems
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90264
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
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91314
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
Open the PDF for Prediction of Film Thickness of an Aero-Engine Bearing Chamber Using Coupled VOF and Thin Film Model in another window
Topics: Aircraft engines, Bearings, Film thickness, Thin films, Air flow, Fluids, Lubricants