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Proceedings Papers

Investigation of Droplet Shedding in an Aeroengine Bearing Chamber Using Convolutional Neural Networks

Katrina Farbrother, Paloma Paleo Cagaeo, Kathy Johnson, Stephen Ambrose
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT22A013, June 13–17, 2022
Paper No: GT2022-82275
DOI: https://doi.org/10.1115/GT2022-82275
View Paper titled, Investigation of Droplet Shedding in an Aeroengine Bearing Chamber Using Convolutional Neural Networks
Click here to open pdf in another window PDF for Investigation of Droplet Shedding in an Aeroengine Bearing Chamber Using Convolutional Neural Networks
Topics: Artificial neural networks, Bearings, Drops, Design, Two-phase flow, Commercial air transport, Film thickness, Geometry, Image processing, Imaging
Proceedings Papers

Experimental Investigation Into Oil Film Thickness and Behaviour Near an Aero-Engine Bearing

Avick Sinha, David Hann, Kathy Johnson, Michael Walsh
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT22A009, June 13–17, 2022
Paper No: GT2022-82180
DOI: https://doi.org/10.1115/GT2022-82180
View Paper titled, Experimental Investigation Into Oil Film Thickness and Behaviour Near an Aero-Engine Bearing
Click here to open pdf in another window PDF for Experimental Investigation Into Oil Film Thickness and Behaviour Near an Aero-Engine Bearing
Topics: Aircraft engines, Bearings, Film thickness, Flow (Dynamics), Stress, Waves, Computational fluid dynamics, Cooling, Engine design, Flight
Proceedings Papers

Circumferentially Grooved Seal Flow Field Analysis Based on Effective Film Thickness to Improve Bulk Flow Models

Nathaniel Gibbons, Cori Watson-Kassa, Christopher Goyne, Minhui He
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT22A005, June 13–17, 2022
Paper No: GT2022-81010
DOI: https://doi.org/10.1115/GT2022-81010
View Paper titled, Circumferentially Grooved Seal Flow Field Analysis Based on Effective Film Thickness to Improve Bulk Flow Models
Click here to open pdf in another window PDF for Circumferentially Grooved Seal Flow Field Analysis Based on Effective Film Thickness to Improve Bulk Flow Models
Topics: Film thickness, Flow (Dynamics), Computational fluid dynamics, Modeling, Reynolds number, Shear stress, Engineering simulation, Leakage, Physics, Rotors
Proceedings Papers

Droplet Impact on a Curved Moving Liquid Film

Avick Sinha, Vaibhav Ramakrishnan, Kathy Johnson
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT31A003, June 13–17, 2022
Paper No: GT2022-79505
DOI: https://doi.org/10.1115/GT2022-79505
View Paper titled, Droplet Impact on a Curved Moving Liquid Film
Click here to open pdf in another window PDF for Droplet Impact on a Curved Moving Liquid Film
Topics: Drops, Liquid films, Performance, Inclined plane, Aircraft engines, Bearings, Bridges (Structures), Carbon dioxide, Computer simulation, Dynamics (Mechanics)
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

A Computational Investigation of Wall-Film Formation by an Impinging Liquid Jet in Crossflow

Gina M. Magnotti, Brandon A. Sforzo, Christopher F. Powell
Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A030, June 13–17, 2022
Paper No: GT2022-80993
DOI: https://doi.org/10.1115/GT2022-80993
View Paper titled, A Computational Investigation of Wall-Film Formation by an Impinging Liquid Jet in Crossflow
Click here to open pdf in another window PDF for A Computational Investigation of Wall-Film Formation by an Impinging Liquid Jet in Crossflow
Topics: Adhesion, Algebra, Aluminum plate, Bubbles, Combustion, Combustion chambers, Emissions, Film thickness, Fluids, Fuels
Proceedings Papers

The Pore Size Dependence of the Radiative Scattering Coefficient in Yttria-Stabilized Zirconia Films

Yao Wang, Pei-feng Hsu, Mary Helen McCay
Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T02A003, June 13–17, 2022
Paper No: GT2022-80853
DOI: https://doi.org/10.1115/GT2022-80853
View Paper titled, The Pore Size Dependence of the Radiative Scattering Coefficient in Yttria-Stabilized Zirconia Films
Click here to open pdf in another window PDF for The Pore Size Dependence of the Radiative Scattering Coefficient in Yttria-Stabilized Zirconia Films
Topics: Scattering (Physics), Thermal barrier coatings, Absorption, Ceramics, Plasma spraying, Porosity, Spraying (Coating processes), Temperature, Algorithms, Aluminum
Proceedings Papers

Experimental Studies on Dry Gas Seals With Time-Resolved Film Thickness Measurements

Jingjing Luo, Dieter Brillert
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A003, June 7–11, 2021
Paper No: GT2021-58547
DOI: https://doi.org/10.1115/GT2021-58547
View Paper titled, Experimental Studies on Dry Gas Seals With Time-Resolved Film Thickness Measurements
Click here to open pdf in another window PDF for Experimental Studies on Dry Gas Seals With Time-Resolved Film Thickness Measurements
Topics: Film thickness, Sealing (Process), Compressors, Computer simulation, High pressure (Physics), Matlab, Pressure, Sensors, Turbochargers, Vibration
Proceedings Papers

Design and Investigations on Dry Gas Seal of the Shaft End for 450MWe Supercritical Carbon Dioxide Compressor

Tao Yuan, Zhigang Li, Jun Li, Qi Yuan
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T31A006, September 21–25, 2020
Paper No: GT2020-14586
DOI: https://doi.org/10.1115/GT2020-14586
View Paper titled, Design and Investigations on Dry Gas Seal of the Shaft End for 450MWe Supercritical Carbon Dioxide Compressor
Click here to open pdf in another window PDF for Design and Investigations on Dry Gas Seal of the Shaft End for 450MWe Supercritical Carbon Dioxide Compressor
Topics: Compressors, Design, Supercritical carbon dioxide, Leakage, Sealing (Process), Film thickness, Leakage flows, Stiffness, Brayton cycle, Clearances (Engineering)
Proceedings Papers

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Experimental Evaluation and Fluid-Structure Model Predictions

Bugra Ertas, Keith Gary, Adolfo Delgado
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A018, September 21–25, 2020
Paper No: GT2020-14964
DOI: https://doi.org/10.1115/GT2020-14964
View Paper titled, Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Experimental Evaluation and Fluid-Structure Model Predictions
Click here to open pdf in another window PDF for Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Experimental Evaluation and Fluid-Structure Model Predictions
Topics: Additive manufacturing, Fluids, Thrust bearings, Turbomachinery, Stress, Bearings, Pressure, Hydrostatics, Thrust, Deflection
Proceedings Papers

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Design and Proof of Concept Testing

Bugra Ertas
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A017, September 21–25, 2020
Paper No: GT2020-14959
DOI: https://doi.org/10.1115/GT2020-14959
View Paper titled, Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Design and Proof of Concept Testing
Click here to open pdf in another window PDF for Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Design and Proof of Concept Testing
Topics: Additive manufacturing, Design, Testing, Thrust bearings, Turbomachinery, Bearings, Thrust, Deflection, Stiffness, Clearances (Engineering)
Proceedings Papers

Numerical Investigation for Characteristics and Oil-Air Distributions of a Tilting-Pad Journal Bearing Under Different Loads

Aoshuang Ding, Xuesong Li
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A024, September 21–25, 2020
Paper No: GT2020-15151
DOI: https://doi.org/10.1115/GT2020-15151
View Paper titled, Numerical Investigation for Characteristics and Oil-Air Distributions of a Tilting-Pad Journal Bearing Under Different Loads
Click here to open pdf in another window PDF for Numerical Investigation for Characteristics and Oil-Air Distributions of a Tilting-Pad Journal Bearing Under Different Loads
Topics: Bearings, Cavitation, Journal bearings, Stress, Flow (Dynamics), Turbulence, Film thickness, Knudsen number, Rotors, Simulation results
Proceedings Papers

Theoretical Study on Static Performance of Herringbone Grooved Aerodynamics Foil Bearing

ZeDa Dong, Cheng Cheng, Fangcheng Xu
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A030, September 21–25, 2020
Paper No: GT2020-15779
DOI: https://doi.org/10.1115/GT2020-15779
View Paper titled, Theoretical Study on Static Performance of Herringbone Grooved Aerodynamics Foil Bearing
Click here to open pdf in another window PDF for Theoretical Study on Static Performance of Herringbone Grooved Aerodynamics Foil Bearing
Topics: Aerodynamics, Foil bearings, Bearings, Energy consumption, Friction, Stress, Pressure, Film thickness, Finite difference methods, Rotation
Proceedings Papers

A Comparison of VOF and Euler-Euler Approaches in CFD Modelling of Two-Phase Flows With a Sharp Interface

Luc Bertolotti, Richard Jefferson-Loveday, Stephen Ambrose, Evgenia Korsukova
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A018, September 21–25, 2020
Paper No: GT2020-14681
DOI: https://doi.org/10.1115/GT2020-14681
View Paper titled, A Comparison of VOF and Euler-Euler Approaches in CFD Modelling of Two-Phase Flows With a Sharp Interface
Click here to open pdf in another window PDF for A Comparison of VOF and Euler-Euler Approaches in CFD Modelling of Two-Phase Flows With a Sharp Interface
Topics: Computational fluid dynamics, Modeling, Two-phase flow, Bearings, Flow (Dynamics), Shear flow, Fluids, Momentum, Reynolds-averaged Navier–Stokes equations, Water
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

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

Response Surface Mapping and Multi-Objective Optimization of Crowning and Tapers in Water-Lubricated Thrust Bearings

Xin Deng, Cori Watson, Minhui He, Roger Fittro, Houston Wood
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A041, June 17–21, 2019
Paper No: GT2019-91984
DOI: https://doi.org/10.1115/GT2019-91984
View Paper titled, Response Surface Mapping and Multi-Objective Optimization of Crowning and Tapers in Water-Lubricated Thrust Bearings
Click here to open pdf in another window PDF for Response Surface Mapping and Multi-Objective Optimization of Crowning and Tapers in Water-Lubricated Thrust Bearings
Topics: Pareto optimization, Response surface methodology, Thrust bearings, Water, Design, Bearing design, Bearings, Film thickness, Optimization, Viscosity
Proceedings Papers

Effect of Pad and Liner Material Properties on the Static Load Performance of a Tilting Pad Thrust Bearing

Rasool Koosha, Luis San Andrés
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A006, June 17–21, 2019
Paper No: GT2019-90231
DOI: https://doi.org/10.1115/GT2019-90231
View Paper titled, Effect of Pad and Liner Material Properties on the Static Load Performance of a Tilting Pad Thrust Bearing
Click here to open pdf in another window PDF for Effect of Pad and Liner Material Properties on the Static Load Performance of a Tilting Pad Thrust Bearing
Topics: Materials properties, Stress, Thrust bearings, Steel, Polymers, Temperature, Drag (Fluid dynamics), Fluid films, Babbitt metal, Film thickness
Proceedings Papers

Supercritical CO 2 Tests for Hydrostatic Film Stiffness in Film-Riding Seals

Deepak Trivedi, Rahul A. Bidkar, Christopher E. Wolfe, Jason Mortzheim
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A018, June 17–21, 2019
Paper No: GT2019-90975
DOI: https://doi.org/10.1115/GT2019-90975
View Paper titled, Supercritical CO 2 Tests for Hydrostatic Film Stiffness in Film-Riding Seals
Click here to open pdf in another window PDF for Supercritical CO 2 Tests for Hydrostatic Film Stiffness in Film-Riding Seals
Topics: Hydrostatics, Stiffness, Supercritical carbon dioxide, Bearings, Temperature, Computational fluid dynamics, Flow (Dynamics), Fluid films, Fluids, Design