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Proceedings Papers

Wall Roughness Effects on Turbulent Flow Past a Near-Wall Square Cylinder

Heath Chalmers, Xingjun Fang, Mark F. Tachie
Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T03A007, August 3–5, 2022
Paper No: FEDSM2022-86954
DOI: https://doi.org/10.1115/FEDSM2022-86954
View Paper titled, Wall Roughness Effects on Turbulent Flow Past a Near-Wall Square Cylinder
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Topics: Cylinders, Surface roughness, Turbulence, Vortex shedding
Journal Articles

The Wake Dynamics Behind a Near-Wall Square Cylinder

Samuel Addai, Xingjun Fang, Afua A. Mante, Mark F. Tachie
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. May 2022, 144(5): 051305.
Paper No: FE-21-1322
DOI: https://doi.org/10.1115/1.4052675
Published Online: January 12, 2022
View Article titled, The Wake Dynamics Behind a Near-Wall Square Cylinder
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Topics: Cylinders, Flow (Dynamics), Wakes, Stress, Boundary layer turbulence, Shear (Mechanics), Dynamics (Mechanics)
Proceedings Papers

Influence of Wall Proximity on the Wake Dynamics Behind a Square Cylinder

Samuel Addai, Afua A. Mante, Sedem Kumahor, Xingjun Fang, Mark F. Tachie
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T05A029, August 10–12, 2021
Paper No: FEDSM2021-65593
DOI: https://doi.org/10.1115/FEDSM2021-65593
View Paper titled, Influence of Wall Proximity on the Wake Dynamics Behind a Square Cylinder
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Topics: Boundary layer turbulence, Cylinders, Dynamics (Mechanics), Particulate matter, Wakes
Journal Articles

The Effects of Upstream Wall Roughness on the Spatio-Temporal Characteristics of Flow Separations Induced by a Forward-Facing Step

Sedem Kumahor, Xingjun Fang, Mark F. Tachie
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. July 2021, 143(7): 071301.
Paper No: FE-20-1626
DOI: https://doi.org/10.1115/1.4050206
Published Online: April 9, 2021
View Article titled, The Effects of Upstream Wall Roughness on the Spatio-Temporal Characteristics of Flow Separations Induced by a Forward-Facing Step
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Topics: Flow (Dynamics), Stress, Surface roughness, Turbulence, Bubbles, Separation (Technology), Shear stress, Boundary layer turbulence, Flow separation, Principal component analysis
Journal Articles

Streamwise Aspect Ratio Effects on Turbulent Flow Separations Induced by Forward–Backward-Facing Steps

Heath Chalmers, Xingjun Fang, Mark F. Tachie
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. February 2021, 143(2): 021305.
Paper No: FE-20-1258
DOI: https://doi.org/10.1115/1.4048686
Published Online: October 29, 2020
View Article titled, Streamwise Aspect Ratio Effects on Turbulent Flow Separations Induced by Forward–Backward-Facing Steps
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Topics: Boundary layer turbulence, Bubbles, Flow (Dynamics), Separation (Technology), Turbulence, Shear (Mechanics), Principal component analysis, Stress
Proceedings Papers

The Effects of Upstream Wall Roughness on Separated and Reattached Flows Over a Forward-Facing Step

Sedem Kumahor, Xingjun Fang, William Ediger, Mark F. Tachie
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A042, July 13–15, 2020
Paper No: FEDSM2020-20257
DOI: https://doi.org/10.1115/FEDSM2020-20257
View Paper titled, The Effects of Upstream Wall Roughness on Separated and Reattached Flows Over a Forward-Facing Step
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Topics: Flow (Dynamics), Surface roughness
Proceedings Papers

The Effects of Upstream Wall Roughness on the Spatio-Temporal Characteristics of Flow Separations Induced by a Forward-Facing Step

Sedem Kumahor, Xingjun Fang, Ali Nematollahi, Mark F. Tachie
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A043, July 13–15, 2020
Paper No: FEDSM2020-20258
DOI: https://doi.org/10.1115/FEDSM2020-20258
View Paper titled, The Effects of Upstream Wall Roughness on the Spatio-Temporal Characteristics of Flow Separations Induced by a Forward-Facing Step
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Topics: Flow separation, Surface roughness
Proceedings Papers

Effects of Streamwise Aspect Ratio on Turbulent Flows Over Forward-Backward Facing Steps

Heath Chalmers, Xingjun Fang, Mark F. Tachie
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A044, July 13–15, 2020
Paper No: FEDSM2020-20263
DOI: https://doi.org/10.1115/FEDSM2020-20263
View Paper titled, Effects of Streamwise Aspect Ratio on Turbulent Flows Over Forward-Backward Facing Steps
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Topics: Turbulence, Flow (Dynamics), Boundary layer turbulence, Bubbles, Separation (Technology), Flow separation, Particulate matter, Principal component analysis, Reynolds number, Stress
Proceedings Papers

An Experimental Study of Surface-Mounted Bluff Bodies Immersed in Deep Turbulent Boundary Layers

Helen A. Amorin, Xingjun Fang, Mark F. Tachie
Proc. ASME. FEDSM2018, Volume 1: Flow Manipulation and Active Control; Bio-Inspired Fluid Mechanics; Boundary Layer and High-Speed Flows; Fluids Engineering Education; Transport Phenomena in Energy Conversion and Mixing; Turbulent Flows; Vortex Dynamics; DNS/LES and Hybrid RANS/LES Methods; Fluid Structure Interaction; Fluid Dynamics of Wind Energy; Bubble, Droplet, and Aerosol Dynamics, V001T06A019, July 15–20, 2018
Paper No: FEDSM2018-83498
DOI: https://doi.org/10.1115/FEDSM2018-83498
View Paper titled, An Experimental Study of Surface-Mounted Bluff Bodies Immersed in Deep Turbulent Boundary Layers
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Topics: Boundary layer turbulence, Boundary layers, Separation (Technology), Particulate matter, Reynolds number, Stress, Turbulence, Velocity measurement, Water