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Proceedings Papers

Effects of Reynolds Number and Streamwise Aspect Ratio on Turbulent Wakes Generated by Rectangular Cylinders

Manqi Liu, Sedem Kumahor, Mark F. Tachie
Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T03A010, August 3–5, 2022
Paper No: FEDSM2022-86964
DOI: https://doi.org/10.1115/FEDSM2022-86964
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Topics: Cylinders, Flow (Dynamics), Reynolds number, Wake turbulence, Turbulence, Flow separation, Kinetic energy, Particulate matter, Resolution (Optics), Wakes
Proceedings Papers

The Effects of Aspect Ratio on Turbulence Wake Flow Over Right Trapezoidal Prism

Jinhao Kang, Sedem Kumahor, Amir Sagharichi, Mark F. Tachie
Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T03A026, August 3–5, 2022
Paper No: FEDSM2022-87640
DOI: https://doi.org/10.1115/FEDSM2022-87640
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Topics: Flow (Dynamics), Flow separation, Prisms (Optics), Turbulence, Wakes, Stress, Bubbles, Particulate matter, Reynolds number, Shear (Mechanics)
Proceedings Papers

Investigations of Aspect Ratio Effects on Wake Dynamics of Rectangular Cylinders

Manqi Liu, Sedem Kumahor, Lucas Audette, Mark F. Tachie
Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T03A030, August 3–5, 2022
Paper No: FEDSM2022-87654
DOI: https://doi.org/10.1115/FEDSM2022-87654
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Topics: Cylinders, Dynamics (Mechanics), Flow (Dynamics), Wakes, Stress, Flow separation, Particulate matter, Reynolds number, Topology, Wake turbulence
Proceedings Papers

Turbulent Characteristics of the Wake Flow Around Rectangular and Trapezoidal Prisms in Uniform Flow

Jinhao Kang, Sedem Kumahor, Amir Sagharichi, Mark F. Tachie
Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T03A029, August 3–5, 2022
Paper No: FEDSM2022-87650
DOI: https://doi.org/10.1115/FEDSM2022-87650
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Topics: Flow (Dynamics), Flow separation, Geometry, Prisms (Optics), Turbulence, Wakes
Journal Articles

Turbulent Flow Around Rectangular Cylinders With Different Streamwise Aspect Ratios

Sedem Kumahor, Mark F. Tachie
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. May 2022, 144(5): 051304.
Paper No: FE-21-1256
DOI: https://doi.org/10.1115/1.4052633
Published Online: January 12, 2022
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Topics: Cylinders, Flow (Dynamics), Stress, Turbulence, Wakes
Proceedings Papers

Interactions Between the Shear Layer Emanating From Rectangular Cylinders and the Near Wake Region

Sedem Kumahor, Samuel Addai, Mark F. Tachie
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T05A026, August 10–12, 2021
Paper No: FEDSM2021-65448
DOI: https://doi.org/10.1115/FEDSM2021-65448
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Topics: Cylinders, Flow (Dynamics), Flow separation, Shear (Mechanics), Wakes, Kinetic energy, Shear stress, Turbulence, Bubbles, Particulate matter
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
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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
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Topics: Flow (Dynamics), Stress, Surface roughness, Turbulence, Bubbles, Separation (Technology), Shear stress, Boundary layer turbulence, Flow separation, Principal component analysis
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
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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
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Topics: Flow separation, Surface roughness