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Christopher Sheaf
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Journal Articles

Impact of Installation on the Performance of an Aero-Engine Exhaust at Wind-Milling Flow Conditions

Ioannis Goulos, David MacManus, Josep Hueso Rebassa, Fernando Tejero, Andy Au, Christopher Sheaf
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2024, 146(8): 081002.
Paper No: GTP-23-1540
https://doi.org/10.1115/1.4063939
Published Online: February 1, 2024
View Article titled, Impact of Installation on the Performance of an Aero-Engine Exhaust at Wind-Milling Flow Conditions
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Topics: Computational fluid dynamics, Exhaust systems, Flow (Dynamics), Milling, Nozzles, Pressure, Wind, Wings, Tertiary petroleum recovery, Aircraft engines
Proceedings Papers

Impact of Installation on the Performance of an Aero-Engine Exhaust at Wind-Milling Flow Conditions

Ioannis Goulos, David MacManus, Josep Hueso Rebassa, Fernando Tejero, Andy Au, Christopher Sheaf
Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A007, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100833
https://doi.org/10.1115/GT2023-100833
View Paper titled, Impact of Installation on the Performance of an Aero-Engine Exhaust at Wind-Milling Flow Conditions
Open the PDF for Impact of Installation on the Performance of an Aero-Engine Exhaust at Wind-Milling Flow Conditions in another window
Topics: Aircraft engines, Exhaust systems, Flow (Dynamics), Milling, Wind, Nozzles, Pressure, Wings, Discharge coefficient, Tertiary petroleum recovery
Journal Articles

Aerodynamic Loading Considerations of Three-Shaft Engine Compression System During Surge

Jose Moreno, John Dodds, Christopher Sheaf, Fanzhou Zhao, Mehdi Vahdati
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2021, 143(12): 121002.
Paper No: TURBO-20-1362
https://doi.org/10.1115/1.4051207
Published Online: June 25, 2021
View Article titled, Aerodynamic Loading Considerations of Three-Shaft Engine Compression System During Surge
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Topics: Pressure, Surges, Engines, Compressors, Flow (Dynamics), Compression, Transients (Dynamics)
Proceedings Papers

Aerodynamic Loading Considerations of Three-Shaft Engine Compression System During Surge

Jose Moreno, John Dodds, Christopher Sheaf, Fanzhou Zhao, Mehdi Vahdati
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A011, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14305
https://doi.org/10.1115/GT2020-14305
View Paper titled, Aerodynamic Loading Considerations of Three-Shaft Engine Compression System During Surge
Open the PDF for Aerodynamic Loading Considerations of Three-Shaft Engine Compression System During Surge in another window
Topics: Compression, Engines, Surges, Compressors, Aircraft engines, High pressure (Physics), Pressure, Computation, Computational fluid dynamics, Design
Proceedings Papers

Robust Aerodynamic Design of Nacelles for Future Civil Aero-Engines

B. Deneys J. Schreiner, Fernando Tejero, David G. MacManus, Christopher Sheaf
Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T01A015, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14470
https://doi.org/10.1115/GT2020-14470
View Paper titled, Robust Aerodynamic Design of Nacelles for Future Civil Aero-Engines
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Topics: Aircraft engines, Design, Engines, Flight, Pareto optimization, Aviation, Cycles, Design methodology, Drag (Fluid dynamics), Emissions
Proceedings Papers

Improved Hierarchical Modelling for Aerodynamically Coupled Systems

Rob Watson, Jiahuan Cui, Yunfei Ma, James Tyacke, Nagabhushana Rao Vadlamani, Mohammed F. Alam, Yushuang Dai, Paul G. Tucker, Teng Cao, Paul Hield, Mark Wilson, Kevin Menzies, Christopher Sheaf
Proc. ASME. GT2017, Volume 2B: Turbomachinery, V02BT41A056, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-65223
https://doi.org/10.1115/GT2017-65223
View Paper titled, Improved Hierarchical Modelling for Aerodynamically Coupled Systems
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Topics: Modeling, Geometry, Simulation, Aircraft engines, Blades, Compressors, Computation, Cross-flow, Cycles, Diffusers
Journal Articles

Aerodynamic Design of Separate-Jet Exhausts for Future Civil Aero-engines—Part I: Parametric Geometry Definition and Computational Fluid Dynamics Approach

Ioannis Goulos, Tomasz Stankowski, John Otter, David MacManus, Nicholas Grech, Christopher Sheaf
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2016, 138(8): 081201.
Paper No: GTP-15-1538
https://doi.org/10.1115/1.4032649
Published Online: March 15, 2016
View Article titled, Aerodynamic Design of Separate-Jet Exhausts for Future Civil Aero-engines—Part I: Parametric Geometry Definition and Computational Fluid Dynamics Approach
Open the PDF for Aerodynamic Design of Separate-Jet Exhausts for Future Civil Aero-engines—Part I: Parametric Geometry Definition and Computational Fluid Dynamics Approach in another window
Topics: Computational fluid dynamics, Design, Engines, Exhaust systems, Flow (Dynamics), Geometry, Nozzles, Aircraft engines
Journal Articles

Aerodynamic Design of Separate-Jet Exhausts for Future Civil Aero-engines—Part II: Design Space Exploration, Surrogate Modeling, and Optimization

Ioannis Goulos, John Otter, Tomasz Stankowski, David MacManus, Nicholas Grech, Christopher Sheaf
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2016, 138(8): 081202.
Paper No: GTP-15-1539
https://doi.org/10.1115/1.4032652
Published Online: March 15, 2016
View Article titled, Aerodynamic Design of Separate-Jet Exhausts for Future Civil Aero-engines—Part II: Design Space Exploration, Surrogate Modeling, and Optimization
Open the PDF for Aerodynamic Design of Separate-Jet Exhausts for Future Civil Aero-engines—Part II: Design Space Exploration, Surrogate Modeling, and Optimization in another window
Topics: Design, Engines, Exhaust systems, Optimization, Nozzles