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Richard Jefferson-Loveday
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Journal Articles

Windage Torque Reduction in Low-Pressure Turbine Cavities Part II: Experimental and Numerical Results

Richard W. Jackson, Zhihui Li, Loizos Christodoulou, Stephen Ambrose, Carl M. Sangan, Richard Jefferson-Loveday, Gary D. Lock, James A. Scobie
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2024, 146(6): 061005.
Paper No: TURBO-23-1214
https://doi.org/10.1115/1.4063876
Published Online: January 29, 2024
View Article titled, Windage Torque Reduction in Low-Pressure Turbine Cavities Part II: Experimental and Numerical Results
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Topics: Cavities, Flow (Dynamics), Pressure, Torque, Wheels, Annulus, Stators, Rotors, Flow control, Turbines
Journal Articles

Windage Torque Reduction in Low-Pressure Turbine Cavities Part I: Concept Design and Numerical Investigations

Zhihui Li, Loizos Christodoulou, Richard Jefferson-Loveday, Stephen Ambrose, Richard Jackson, Gary D. Lock, Carl M. Sangan, James A. Scobie
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2024, 146(6): 061004.
Paper No: TURBO-23-1161
https://doi.org/10.1115/1.4064224
Published Online: January 29, 2024
View Article titled, Windage Torque Reduction in Low-Pressure Turbine Cavities Part I: Concept Design and Numerical Investigations
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Topics: Cavities, Design, Flow (Dynamics), Flow control, Pressure, Torque, Turbines, Cavity flows
Proceedings Papers

Numerical Study on the Aeroacoustics of a Propeller-Wing Integration at Various Advance Ratios

Guangyuan Huang, Sidharath Sharma, Stephen Ambrose, Richard Jefferson-Loveday
Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A024, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102655
https://doi.org/10.1115/GT2023-102655
View Paper titled, Numerical Study on the Aeroacoustics of a Propeller-Wing Integration at Various Advance Ratios
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Topics: Aerodynamic noise, Electric propulsion, Propellers, Wings
Proceedings Papers

Windage Torque Reduction in Low-Pressure Turbine Cavities - Part 1: Concept Design and Numerical Investigations

Zhihui Li, Loizos Christodoulou, Richard Jefferson-Loveday, Stephen Ambrose, Richard Jackson, Gary D. Lock, Carl M. Sangan, James A. Scobie
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A035, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103532
https://doi.org/10.1115/GT2023-103532
View Paper titled, Windage Torque Reduction in Low-Pressure Turbine Cavities - Part 1: Concept Design and Numerical Investigations
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Topics: Cavities, Design, Flow (Dynamics), Flow control, Pressure, Torque, Turbines
Proceedings Papers

Windage Torque Reduction in Low-Pressure Turbine Cavities Part 2: Experimental and Numerical Results

Richard Jackson, Gary D. Lock, Carl M. Sangan, James A. Scobie, Zhihui Li, Loizos Christodoulou, Richard Jefferson-Loveday, Stephen Ambrose
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A015, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102311
https://doi.org/10.1115/GT2023-102311
View Paper titled, Windage Torque Reduction in Low-Pressure Turbine Cavities Part 2: Experimental and Numerical Results
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Topics: Cavities, Pressure, Torque, Turbines, Flow (Dynamics), Wheels, Engines, Rotors, Stators, Annulus
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
Publisher: ASME
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
Publisher: ASME
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

A Comparison of Volume of Fluid and Euler–Euler Approaches in Computational Fluid Dynamics Modeling of Two-Phase Flows With a Sharp Interface

Luc Bertolotti, Richard Jefferson Loveday, Stephen Ambrose, Evgenia Korsukova
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2021, 143(12): 121005.
Paper No: TURBO-20-1253
https://doi.org/10.1115/1.4051554
Published Online: July 5, 2021
View Article titled, A Comparison of Volume of Fluid and Euler–Euler Approaches in Computational Fluid Dynamics Modeling of Two-Phase Flows With a Sharp Interface
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Topics: Aircraft engines, Bearings, Computational fluid dynamics, Flow (Dynamics), Fluids, Large eddy simulation, Modeling, Turbulence, Two-phase flow, Simulation
Journal Articles

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

Kuldeep Singh, Medhat Sharabi, Richard Jefferson-Loveday, Stephen Ambrose, Carol Eastwick, Jing Cao, Adrian Jacobs
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2021, 143(4): 041001.
Paper No: GTP-20-1559
https://doi.org/10.1115/1.4049663
Published Online: February 8, 2021
View Article titled, Modeling of Partially Wetting Liquid Film Using an Enhanced Thin Film Model for Aero-Engine Bearing Chamber Applications
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Topics: Bearings, Film thickness, Flow (Dynamics), Thin films, Wetting, Aircraft engines, Liquid films, Drying, Simulation
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14681
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
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Topics: Computational fluid dynamics, Modeling, Two-phase flow, Bearings, Flow (Dynamics), Shear flow, Fluids, Momentum, Reynolds-averaged Navier–Stokes equations, Water
Proceedings Papers

Implicit GPU Accelerated Numerical Simulations via the Use of Ghost Cell Immersed Boundary Method

Piotr Zacharzewski, Richard Jefferson-Loveday
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A045, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15844
https://doi.org/10.1115/GT2020-15844
View Paper titled, Implicit GPU Accelerated Numerical Simulations via the Use of Ghost Cell Immersed Boundary Method
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Topics: Computer simulation, Graphics processing units, Computational fluid dynamics, Engineering simulation, Hardware, Reynolds-averaged Navier–Stokes equations, Simulation, Turbomachinery, Architecture, Design
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
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91323
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
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Topics: Aircraft engines, Bearings, Drying, Thin films, Wetting, Film thickness, Lubricants, Air flow, Flat plates, Fluids
Journal Articles

Multiphase Computational Fluid Dynamics Modeling of External Oil Flow From a Journal Bearing

Martin Berthold, Hervé Morvan, Richard Jefferson-Loveday, Colin Young, Benjamin C. Rothwell, Stephen Ambrose
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2019, 141(5): 051002.
Paper No: GTP-18-1556
https://doi.org/10.1115/1.4041517
Published Online: November 20, 2018
View Article titled, Multiphase Computational Fluid Dynamics Modeling of External Oil Flow From a Journal Bearing
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Topics: Computational fluid dynamics, Flow (Dynamics), Journal bearings, Phase interfaces, Modeling, Boundary-value problems, Gears
Proceedings Papers

Multiphase CFD Modeling of External Oil Flow From a Journal Bearing

Martin Berthold, Hervé Morvan, Richard Jefferson-Loveday, Benjamin C. Rothwell, Colin Young
Proc. ASME. GT2018, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A039, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-77130
https://doi.org/10.1115/GT2018-77130
View Paper titled, Multiphase CFD Modeling of External Oil Flow From a Journal Bearing
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Topics: Computational fluid dynamics, Flow (Dynamics), Journal bearings, Modeling, Bearings, Boundary-value problems, Outflow, Phase interfaces, Approximation, Centrifugal force
Journal Articles

Toward Investigation of External Oil Flow From a Journal Bearing in an Epicyclic Gearbox

Martin Berthold, Hervé Morvan, Colin Young, Richard Jefferson-Loveday
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 062501.
Paper No: GTP-17-1410
https://doi.org/10.1115/1.4038284
Published Online: January 17, 2018
View Article titled, Toward Investigation of External Oil Flow From a Journal Bearing in an Epicyclic Gearbox
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Topics: Computational fluid dynamics, Flow (Dynamics), Journal bearings, Gears
Proceedings Papers

Towards Investigation of External Oil Flow From a Journal Bearing in an Epicyclic Gearbox

Martin Berthold, Hervé Morvan, Colin Young, Richard Jefferson-Loveday
Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A010, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63451
https://doi.org/10.1115/GT2017-63451
View Paper titled, Towards Investigation of External Oil Flow From a Journal Bearing in an Epicyclic Gearbox
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Topics: Flow (Dynamics), Journal bearings, Mechanical drives, Computational fluid dynamics, Bearings, Approximation, Boundary-value problems, Centrifugal force, Computer simulation, Design
Proceedings Papers

Evaluation of the SST-SAS Model for Prediction of Separated Flow Inside Turbine Internal Cooling Passages

Piotr Zacharzewski, Kathy Simmons, Richard Jefferson-Loveday, Luigi Capone
Proc. ASME. GT2016, Volume 5B: Heat Transfer, V05BT11A003, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56117
https://doi.org/10.1115/GT2016-56117
View Paper titled, Evaluation of the SST-SAS Model for Prediction of Separated Flow Inside Turbine Internal Cooling Passages
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Topics: Cooling, Flow (Dynamics), Turbines, Reynolds-averaged Navier–Stokes equations, Computation, Heat transfer, Turbulence, Bubbles, Ducts, Errors
Journal Articles

Large Eddy Simulation for Turbines: Methodologies, Cost and Future Outlooks

James Tyacke, Paul Tucker, Richard Jefferson-Loveday, Nagabushana Rao Vadlamani, Robert Watson, Iftekhar Naqavi, Xiaoyu Yang
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. June 2014, 136(6): 061009.
Paper No: TURBO-13-1148
https://doi.org/10.1115/1.4025589
Published Online: November 19, 2013
View Article titled, Large Eddy Simulation for Turbines: Methodologies, Cost and Future Outlooks
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Topics: Flow (Dynamics), Modeling, Reynolds-averaged Navier–Stokes equations, Turbulence, Turbines, Simulation, Cooling, Ducts