1-20 of 20
William D. E. Allan
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Effect of Geometry Modification of a Double Entrance Y-Duct Inlet on Aerodynamic Performance With High Speed Flow

Ben Gilbart, Courtney Rider, Asad Asghar, William D. E. Allan, Robert A. Stowe, Rogerio Pimentel
Proc. ASME. GT2024, Volume 1: Aircraft Engine, V001T01A063, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129402
https://doi.org/10.1115/GT2024-129402
View Paper titled, Effect of Geometry Modification of a Double Entrance Y-Duct Inlet on Aerodynamic Performance With High Speed Flow
Open the PDF for Effect of Geometry Modification of a Double Entrance Y-Duct Inlet on Aerodynamic Performance With High Speed Flow in another window
Topics: Ducts, Flow (Dynamics), Geometry
Proceedings Papers

Effect of Gerlach Cross-Section on S-Duct Inlet Performance in High Subsonic Flow

Benjamin D. Frosst, Asad Asghar, William D. E. Allan, Robert A. Stowe, Rogerio Pimentel, Grant Ingram, Timothy Orchard
Proc. ASME. GT2024, Volume 1: Aircraft Engine, V001T01A062, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129341
https://doi.org/10.1115/GT2024-129341
View Paper titled, Effect of Gerlach Cross-Section on S-Duct Inlet Performance in High Subsonic Flow
Open the PDF for Effect of Gerlach Cross-Section on S-Duct Inlet Performance in High Subsonic Flow in another window
Topics: Diffusers, Ducts, Subsonic flow
Proceedings Papers

Effect of a Passive Flow Control Device on the Performance of an S-Duct Inlet in High Subsonic Flow

Courtney Rider, Asad Asghar, William D. E. Allan, Grant Ingram, Robert Stowe, Rogerio Pimentel
Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A038, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104104
https://doi.org/10.1115/GT2023-104104
View Paper titled, Effect of a Passive Flow Control Device on the Performance of an S-Duct Inlet in High Subsonic Flow
Open the PDF for Effect of a Passive Flow Control Device on the Performance of an S-Duct Inlet in High Subsonic Flow in another window
Topics: Ducts, Flow control, Subsonic flow, Separation (Technology), Computational fluid dynamics, Pressure, Diffusers, Simulation, Aerodynamics, Airfoils
Proceedings Papers

Effect of Entrance Cross-Section on Bulk Swirl and Performance of an S-Duct Inlet in High Subsonic Flow

Ben Gilbart, Asad Asghar, William D. E. Allan, Robert Stowe, Rogerio Pimentel, Timothy Pistun
Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A040, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104188
https://doi.org/10.1115/GT2023-104188
View Paper titled, Effect of Entrance Cross-Section on Bulk Swirl and Performance of an S-Duct Inlet in High Subsonic Flow
Open the PDF for Effect of Entrance Cross-Section on Bulk Swirl and Performance of an S-Duct Inlet in High Subsonic Flow in another window
Topics: Ducts, Subsonic flow, Flow (Dynamics), Pressure, Engines, Additive manufacturing, Aircraft engines, Diffusion (Physics), High pressure (Physics), Mach number
Proceedings Papers

Performance Evaluation of an Axial Compressor With Modified Blades Using Leading Edge Tubercles

Satpreet S. Sidhu, Asad Asghar, William D. E. Allan
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A022, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102056
https://doi.org/10.1115/GT2023-102056
View Paper titled, Performance Evaluation of an Axial Compressor With Modified Blades Using Leading Edge Tubercles
Open the PDF for Performance Evaluation of an Axial Compressor With Modified Blades Using Leading Edge Tubercles in another window
Topics: Blades, Compressors, Performance evaluation, Flow control, Rotors, Shapes, Cascades (Fluid dynamics), Design, Electrical discharge machining, Finishing
Proceedings Papers

Internal Aerodynamic Performance Evaluation of Double Entrance S-Duct Intake at Moderately High Subsonic Mach Number

Satpreet Sidhu, Asad Asghar, William D. E. Allan, R. A. Stowe, R. Pimentel
Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T01A004, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58849
https://doi.org/10.1115/GT2021-58849
View Paper titled, Internal Aerodynamic Performance Evaluation of Double Entrance S-Duct Intake at Moderately High Subsonic Mach Number
Open the PDF for Internal Aerodynamic Performance Evaluation of Double Entrance S-Duct Intake at Moderately High Subsonic Mach Number in another window
Topics: Ducts, Mach number, Performance evaluation, Pressure, Engines, Aircraft, Air flow, Aircraft propulsion, Computational fluid dynamics, Flow separation
Proceedings Papers

Investigation of a Passive Flow Control Device in an S-Duct Inlet at High Subsonic Flow

Courtney Rider, Asad Asghar, William D. E. Allan, Grant Ingram, Robert Stowe, Rogerio Pimentel
Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T01A018, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60230
https://doi.org/10.1115/GT2021-60230
View Paper titled, Investigation of a Passive Flow Control Device in an S-Duct Inlet at High Subsonic Flow
Open the PDF for Investigation of a Passive Flow Control Device in an S-Duct Inlet at High Subsonic Flow in another window
Topics: Ducts, Flow control, Subsonic flow, Flow (Dynamics), Computational fluid dynamics, Pressure, Simulation, Diffusers, Additive manufacturing, Airfoils
Proceedings Papers

Performance Evaluation of Leading Edge Tubercles Applied to the Blades in a 2-D Compressor Cascade

Satpreet S. Sidhu, Asad Asghar, William D. E. Allan
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A017, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58798
https://doi.org/10.1115/GT2021-58798
View Paper titled, Performance Evaluation of Leading Edge Tubercles Applied to the Blades in a 2-D Compressor Cascade
Open the PDF for Performance Evaluation of Leading Edge Tubercles Applied to the Blades in a 2-D Compressor Cascade in another window
Topics: Blades, Cascades (Fluid dynamics), Compressors, Performance evaluation, Flow visualization, Geometry, Mach number, Pressure, Aircraft engines, Design
Proceedings Papers

A Low Reynolds Number Experimental Evaluation of Tubercles on a Low-Pressure Turbine Cascade

Stephen A. Pym, Asad Asghar, William D. E. Allan, John P. Clark
Proc. ASME. GT2019, Volume 2B: Turbomachinery, V02BT40A028, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91699
https://doi.org/10.1115/GT2019-91699
View Paper titled, A Low Reynolds Number Experimental Evaluation of Tubercles on a Low-Pressure Turbine Cascade
Open the PDF for A Low Reynolds Number Experimental Evaluation of Tubercles on a Low-Pressure Turbine Cascade in another window
Topics: Cascades (Fluid dynamics), Pressure, Reynolds number, Turbines, Blades, Boundary layers, Engines, Suction, Turbine blades, Aircraft
Proceedings Papers

Investigation of a Passive Flow Control Device in an S-Duct Inlet of a Propulsion System With High Subsonic Flow

Asad Asghar, Satpreet Sidhu, William D. E. Allan, Grant Ingram, Tom M. Hickling, Robert Stowe
Proc. ASME. GT2018, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A033, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76636
https://doi.org/10.1115/GT2018-76636
View Paper titled, Investigation of a Passive Flow Control Device in an S-Duct Inlet of a Propulsion System With High Subsonic Flow
Open the PDF for Investigation of a Passive Flow Control Device in an S-Duct Inlet of a Propulsion System With High Subsonic Flow in another window
Topics: Ducts, Flow control, Propulsion systems, Subsonic flow, Pressure, Flow (Dynamics), Geometry, Additive manufacturing, Computational fluid dynamics, Diffusers
Proceedings Papers

Pressure Equalization Method for Passive Flow Control of an S-Duct Intake for High Subsonic Speeds

Asad Asghar, Stephen Pym, William D. E. Allan, Marc LaViolette, Robert Stowe
Proc. ASME. GT2018, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A016, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75793
https://doi.org/10.1115/GT2018-75793
View Paper titled, Pressure Equalization Method for Passive Flow Control of an S-Duct Intake for High Subsonic Speeds
Open the PDF for Pressure Equalization Method for Passive Flow Control of an S-Duct Intake for High Subsonic Speeds in another window
Topics: Ducts, Flow control, Pressure, Flow (Dynamics), Engines, Mach number, Aircraft, Aircraft engines, Boundary layers, Diffusers
Proceedings Papers

S-Duct Diffuser Offset-to-Length Ratio Effect on Aerodynamic Performance of Propulsion-System Inlet of High Speed Aircraft

Asad Asghar, William D. E. Allan, Marc LaViolette, Robert Stowe, Derrick Alexander, Grant Ingram
Proc. ASME. GT2018, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A035, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76661
https://doi.org/10.1115/GT2018-76661
View Paper titled, S-Duct Diffuser Offset-to-Length Ratio Effect on Aerodynamic Performance of Propulsion-System Inlet of High Speed Aircraft
Open the PDF for S-Duct Diffuser Offset-to-Length Ratio Effect on Aerodynamic Performance of Propulsion-System Inlet of High Speed Aircraft in another window
Topics: Aircraft, Diffusers, Ducts, Propulsion systems, Pressure, Flow (Dynamics), Additive manufacturing, Aircraft engines, Computational fluid dynamics, Drag (Fluid dynamics)
Journal Articles

Entrance Aspect Ratio Effect on S-Duct Inlet Performance at High-Subsonic Flow

Asad Asghar, Robert A. Stowe, William D. E. Allan, Derrick Alexander
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2017, 139(5): 052602.
Paper No: GTP-16-1270
https://doi.org/10.1115/1.4035206
Published Online: January 4, 2017
View Article titled, Entrance Aspect Ratio Effect on S-Duct Inlet Performance at High-Subsonic Flow
Open the PDF for Entrance Aspect Ratio Effect on S-Duct Inlet Performance at High-Subsonic Flow in another window
Topics: Diffusers, Ducts, Flow (Dynamics), Pressure, Computational fluid dynamics
Journal Articles

Two-Dimensional Experimental Investigation on the Effects of a Fowler Flap Gap and Overlap Size on the Wake Flow Field

David Demel, Mohsen Ferchichi, William D. E. Allan, Marouen Dghim
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2017, 139(2): 021101.
Paper No: FE-15-1694
https://doi.org/10.1115/1.4034524
Published Online: November 3, 2016
View Article titled, Two-Dimensional Experimental Investigation on the Effects of a Fowler Flap Gap and Overlap Size on the Wake Flow Field
Open the PDF for Two-Dimensional Experimental Investigation on the Effects of a Fowler Flap Gap and Overlap Size on the Wake Flow Field in another window
Topics: Airfoils, Flow (Dynamics), Wakes, Wings, Suction, Boundary layers
Proceedings Papers

Entrance Aspect Ratio Effect on S-Duct Inlet Performance at High-Subsonic Flow

Asad Asghar, Robert A. Stowe, William D. E. Allan, Derrick Alexander
Proc. ASME. GT2016, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A036, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57875
https://doi.org/10.1115/GT2016-57875
View Paper titled, Entrance Aspect Ratio Effect on S-Duct Inlet Performance at High-Subsonic Flow
Open the PDF for Entrance Aspect Ratio Effect on S-Duct Inlet Performance at High-Subsonic Flow in another window
Topics: Ducts, Flow (Dynamics), Pressure, Diffusers, Databases, Aircraft engines, Computational fluid dynamics, Flight, Geometry, Mach number
Journal Articles

Enhanced Experimental Testing of New Erosion-Resistant Compressor Blade Coatings

Sean G. Leithead, William D. E. Allan, Linruo Zhao, Qi Yang
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2016, 138(11): 112603.
Paper No: GTP-16-1159
https://doi.org/10.1115/1.4033580
Published Online: June 1, 2016
View Article titled, Enhanced Experimental Testing of New Erosion-Resistant Compressor Blade Coatings
Open the PDF for Enhanced Experimental Testing of New Erosion-Resistant Compressor Blade Coatings in another window
Topics: Blades, Erosion, Testing, Sands
Proceedings Papers

Performance Evaluation of an S-Duct Diffuser of a Flight-Vehicle Inlet in High-Subsonic Flow

Asad Asghar, Robert A. Stowe, William D. E. Allan, Derrick Alexander
Proc. ASME. GT2015, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A027, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43740
https://doi.org/10.1115/GT2015-43740
View Paper titled, Performance Evaluation of an S-Duct Diffuser of a Flight-Vehicle Inlet in High-Subsonic Flow
Open the PDF for Performance Evaluation of an S-Duct Diffuser of a Flight-Vehicle Inlet in High-Subsonic Flow in another window
Topics: Diffusers, Ducts, Flight, Flow (Dynamics), Performance evaluation, Vehicles, Pressure, Databases, Aerodynamics, Aircraft engines
Journal Articles

Performance Metrics and Experimental Testing of Erosion-Resistant Compressor Blade Coatings

Sean G. Leithead, William D. E. Allan, Linruo Zhao
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2015, 137(5): 052101.
Paper No: GTP-14-1453
https://doi.org/10.1115/1.4028719
Published Online: May 1, 2015
View Article titled, Performance Metrics and Experimental Testing of Erosion-Resistant Compressor Blade Coatings
Open the PDF for Performance Metrics and Experimental Testing of Erosion-Resistant Compressor Blade Coatings in another window
Topics: Blades, Erosion, Testing, Coatings, Sands, Flow (Dynamics)
Proceedings Papers

Performance Metrics and Experimental Testing of Erosion-Resistant Compressor Blade Coatings

Sean G. Leithead, William D. E. Allan, Linruo Zhao
Proc. ASME. GT2014, Volume 1A: Aircraft Engine; Fans and Blowers, V01AT01A003, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25066
https://doi.org/10.1115/GT2014-25066
View Paper titled, Performance Metrics and Experimental Testing of Erosion-Resistant Compressor Blade Coatings
Open the PDF for Performance Metrics and Experimental Testing of Erosion-Resistant Compressor Blade Coatings in another window
Topics: Blades, Coatings, Compressors, Erosion, Testing, Durability, Gas turbines, Sands, Titanium, Aluminum
Proceedings Papers

Design of Streamwise Stagger Within a Pin Fin Array to Minimize Pressure Loss

Stephen A. Andrews, William D. E. Allan
Proc. ASME. IMECE2008, Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C, 1497-1505, October 31–November 6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2008-66683
https://doi.org/10.1115/IMECE2008-66683
View Paper titled, Design of Streamwise Stagger Within a Pin Fin Array to Minimize Pressure Loss
Open the PDF for Design of Streamwise Stagger Within a Pin Fin Array to Minimize Pressure Loss in another window
Topics: Design, Pressure, Friction, Computer cooling, Cooling, Heat, Heat transfer, Heating, Pressure drop, Stress