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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
https://doi.org/10.1115/GT2022-82275
View Paper titled, Investigation of Droplet Shedding in an Aeroengine Bearing Chamber Using Convolutional Neural Networks
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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 Shedding From a Rotating Cup Geometry

Paloma Paleo Cageao, Kathy Johnson, Stephen Ambrose, Rajab Omar
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, V08AT22A010, June 13–17, 2022
Paper No: GT2022-82195
https://doi.org/10.1115/GT2022-82195
View Paper titled, Experimental Investigation Into Oil Shedding From a Rotating Cup Geometry
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Topics: Design, Disks, Drops, Flow (Dynamics), Geometry, Rotating disks, Rotation, Turbulence
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
https://doi.org/10.1115/GT2022-82180
View Paper titled, Experimental Investigation Into Oil Film Thickness and Behaviour Near an Aero-Engine Bearing
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Topics: Aircraft engines, Bearings, Film thickness, Flow (Dynamics), Stress, Waves, Computational fluid dynamics, Cooling, Engine design, Flight
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
https://doi.org/10.1115/GT2022-79505
View Paper titled, Droplet Impact on a Curved Moving Liquid Film
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Topics: Drops, Liquid films, Performance, Inclined plane, Aircraft engines, Bearings, Bridges (Structures), Carbon dioxide, Computer simulation, Dynamics (Mechanics)
Proceedings Papers

Numerical Investigation Into Maximum Pressure Capability of Intershaft Hydraulic Seals

Achinie Warusevitane, Kathy Johnson, Stephen Ambrose
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A025, June 13–17, 2022
Paper No: GT2022-82196
https://doi.org/10.1115/GT2022-82196
View Paper titled, Numerical Investigation Into Maximum Pressure Capability of Intershaft Hydraulic Seals
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Topics: Computational fluid dynamics, Pressure, Fluids, Leakage, Air flow, Aircraft engines, Analytical methods, Cavities, Computer simulation, Design
Journal Articles

How Do Interfacial Shear and Gravity Affect the Oil Film Characteristics Near an Aero-Engine Bearing?

Avick Sinha, Benjamin Brewster, Kathy Johnson, Mike Walsh, David Hann
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2022, 144(10): 101001.
Paper No: GTP-22-1037
https://doi.org/10.1115/1.4055211
Published Online: August 25, 2022
View Article titled, How Do Interfacial Shear and Gravity Affect the Oil Film Characteristics Near an Aero-Engine Bearing?
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Topics: Aircraft engines, Bearings, Film thickness, Flow (Dynamics), Gravity (Force), Shear (Mechanics), Stress, Waves, Imaging
Journal Articles

Simulation of a Simplified Aeroengine Bearing Chamber Using a Fully Coupled Two-Way Eulerian Thin Film/Discrete Phase Approach Part II: Droplet Behavior in the Chamber

Andrew Nicoli, Kathy Johnson, Richard Jefferson-Loveday
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2021, 143(10): 101016.
Paper No: GTP-21-1139
https://doi.org/10.1115/1.4051561
Published Online: September 20, 2021
View Article titled, Simulation of a Simplified Aeroengine Bearing Chamber Using a Fully Coupled Two-Way Eulerian Thin Film/Discrete Phase Approach Part II: Droplet Behavior in the Chamber
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Topics: Bearings, Drops, Flow (Dynamics), Particulate matter, Separation (Technology), Thin films, Shear (Mechanics)
Journal Articles

Simulation of a Simplified Aeroengine Bearing Chamber Using a Fully Coupled Two-Way Eulerian Thin Film/Discrete Phase Approach Part I: Film Behavior Near the Bearing

Andrew Nicoli, Kathy Johnson, Richard Jefferson-Loveday
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2021, 143(10): 101015.
Paper No: GTP-21-1138
https://doi.org/10.1115/1.4051560
Published Online: September 20, 2021
View Article titled, Simulation of a Simplified Aeroengine Bearing Chamber Using a Fully Coupled Two-Way Eulerian Thin Film/Discrete Phase Approach Part I: Film Behavior Near the Bearing
Open the PDF for Simulation of a Simplified Aeroengine Bearing Chamber Using a Fully Coupled Two-Way Eulerian Thin Film/Discrete Phase Approach Part I: Film Behavior Near the Bearing in another window
Topics: Bearings, Film thickness, Flow (Dynamics), Thin films, Gravity (Force), Drops, Simulation, Shear (Mechanics)
Journal Articles

Scavenge Performance of an Optimized Shallow Sump at Various Flow Conditions

Budi Chandra, Kathy Johnson
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2021, 143(2): 021014.
Paper No: GTP-20-1774
https://doi.org/10.1115/1.4049405
Published Online: January 18, 2021
View Article titled, Scavenge Performance of an Optimized Shallow Sump at Various Flow Conditions
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Topics: Bearings, Engines, Flow (Dynamics), Drops
Proceedings Papers

Numerical Investigations Into the Oil Capture Efficiency of a Curve-Bladed Scoop System

Joshua Lee, Arun Prabhakar, Kathy Johnson
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A032, September 21–25, 2020
Paper No: GT2020-15257
https://doi.org/10.1115/GT2020-15257
View Paper titled, Numerical Investigations Into the Oil Capture Efficiency of a Curve-Bladed Scoop System
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Topics: Aircraft engines, Bearings, Blades, Computational fluid dynamics, Cooling, Engines, Flow (Dynamics), Fluids, Geometry, Jets
Proceedings Papers

Numerical Investigation Into Fully and Partially Wetted Disk Geometries With Relevance to Intershaft Hydraulic Seals

Achinie Warusevitane, Kathy Johnson, Stephen Ambrose, Mike Walsh, Colin Young
Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T01A025, September 21–25, 2020
Paper No: GT2020-15121
https://doi.org/10.1115/GT2020-15121
View Paper titled, Numerical Investigation Into Fully and Partially Wetted Disk Geometries With Relevance to Intershaft Hydraulic Seals
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Topics: Disks, Flow (Dynamics), Annulus, Bearings, Fluids, Rotating disks, Aircraft engines, Computational fluid dynamics, Engines, Industrial research
Proceedings Papers

Scavenge Performance of an Optimized Shallow Sump at Various Flow Conditions

Budi Chandra, Kathy Johnson
Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T01A036, September 21–25, 2020
Paper No: GT2020-16049
https://doi.org/10.1115/GT2020-16049
View Paper titled, Scavenge Performance of an Optimized Shallow Sump at Various Flow Conditions
Open the PDF for Scavenge Performance of an Optimized Shallow Sump at Various Flow Conditions in another window
Topics: Bearings, Flow (Dynamics), Engines, Drops, Gas turbines, Geometry, Aircraft engines, Design, Rotation, Volume measurement