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Muhannad Altimemy
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Proceedings Papers

Flow Characterization of an Industrial Size Francis Turbine Operating at Ultra-Low Load – The Effect of Water Injection

Muhannad Altimemy, Justin Caspar, Saif Watheq, Alparslan Oztekin
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T05A017, August 10–12, 2021
Paper No: FEDSM2021-65559
DOI: https://doi.org/10.1115/FEDSM2021-65559
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Topics: Flow (Dynamics), Fluctuations (Physics), Francis turbines, Stress, Underground injection
Proceedings Papers

Performance of Kaplan Turbine Operating at Design Condition

Muhannad Altimemy, Saif Watheq, Justin Caspar, Alparslan Oztekin
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T05A018, August 10–12, 2021
Paper No: FEDSM2021-65561
DOI: https://doi.org/10.1115/FEDSM2021-65561
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Topics: Design, Fluctuations (Physics), Kaplan turbines, Pressure, Ropes, Wake turbulence
Proceedings Papers

Francis Turbine Operation at Excess Flow Rate Using Large Eddy Simulation: The Effect of Water Injection

Muhannad Altimemy, Justin Caspar, Saif Watheq, Alparslan Oztekin
Proc. ASME. IMECE2020, Volume 10: Fluids Engineering, V010T10A043, November 16–19, 2020
Paper No: IMECE2020-23378
DOI: https://doi.org/10.1115/IMECE2020-23378
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Topics: Flow (Dynamics), Fluctuations (Physics), Francis turbines, Large eddy simulation, Pressure, Underground injection
Proceedings Papers

Large Eddy Simulations of Francis Turbine Operating at Ultra-Low Loads

Muhannad Altimemy, Justin Caspar, Saif Watheq, Alparslan Oztekin
Proc. ASME. IMECE2020, Volume 10: Fluids Engineering, V010T10A044, November 16–19, 2020
Paper No: IMECE2020-23380
DOI: https://doi.org/10.1115/IMECE2020-23380
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Topics: Fluctuations (Physics), Francis turbines, Large eddy simulation, Pressure, Stress, Vortices
Proceedings Papers

Performance of Francis Turbine Operating at Excess Load Condition

Muhannad Altimemy, Justin Caspar, Alparslan Oztekin
Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A033, July 13–15, 2020
Paper No: FEDSM2020-20053
DOI: https://doi.org/10.1115/FEDSM2020-20053
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Topics: Fluctuations (Physics), Francis turbines, Pressure, Stress
Proceedings Papers

Computational Study of Pump Turbine: Partial Load Operations

Muhannad Altimemy, Justin Caspar, Alparslan Oztekin
Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A034, July 13–15, 2020
Paper No: FEDSM2020-20054
DOI: https://doi.org/10.1115/FEDSM2020-20054
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Topics: Fluctuations (Physics), Pressure, Pump turbines, Ropes, Stress, Vortices
Proceedings Papers

Micro-Hydrokinetic Turbine Operating in the Vicinity of a Free Surface: Multiphase Large Eddy Simulations

Bashar Attiya, Muhannad Altimemy, Cosan Daskiran, I-Han Liu, Alparslan Oztekin
Proc. ASME. IMECE2019, Volume 7: Fluids Engineering, V007T08A040, November 11–14, 2019
Paper No: IMECE2019-10899
DOI: https://doi.org/10.1115/IMECE2019-10899
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Topics: Large eddy simulation, Turbines, Simulation, Engineering simulation, Multiphase flow, Turbulence, Dynamics (Mechanics), Energy generation, Flow (Dynamics), Fluids
Proceedings Papers

Stabilizing Pump-Turbine Operations Using Water Injection Passive Control

Muhannad Altimemy, Bashar Attiya, Cosan Daskiran, I-Han Liu, Alparslan Oztekin
Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A010, July 28–August 1, 2019
Paper No: AJKFluids2019-4866
DOI: https://doi.org/10.1115/AJKFluids2019-4866
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Topics: Passive control, Pump turbines, Underground injection, Fluctuations (Physics), Pressure, Engineering simulation, Flow (Dynamics), Simulation, Turbines, Turbulence
Proceedings Papers

Mitigation of Flow-Induced Pressure Fluctuations in a Francis Turbine Using Water Injection

Muhannad Altimemy, Bashar Attiya, Cosan Daskiran, I-Han Liu, Alparslan Oztekin
Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A062, July 28–August 1, 2019
Paper No: AJKFluids2019-4867
DOI: https://doi.org/10.1115/AJKFluids2019-4867
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Topics: Flow (Dynamics), Fluctuations (Physics), Francis turbines, Pressure, Underground injection, Stress, Engineering simulation, Simulation, Turbulence, Design
Proceedings Papers

Pressure Fluctuation Mitigation in a Francis Turbine With Water Injection: Computational Study

Muhannad Altimemy, Cosan Daskiran, Bashar Attiya, I-Han Liu, Alparslan Oztekin
Proc. ASME. IMECE2018, Volume 7: Fluids Engineering, V007T09A047, November 9–15, 2018
Paper No: IMECE2018-86333
DOI: https://doi.org/10.1115/IMECE2018-86333
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Topics: Francis turbines, Pressure, Underground injection, Ropes, Vortices, Engineering simulation, Simulation, Computational fluid dynamics, Energy generation, Reynolds number
Proceedings Papers

Large Eddy Simulation of Ventilated Pump-Turbine for Wastewater Treatment

Cosan Daskiran, Bashar Attiya, Muhannad Altimemy, I-Han Liu, Alparslan Oztekin
Proc. ASME. IMECE2018, Volume 7: Fluids Engineering, V007T09A006, November 9–15, 2018
Paper No: IMECE2018-86330
DOI: https://doi.org/10.1115/IMECE2018-86330
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Topics: Large eddy simulation, Pump turbines, Wastewater treatment, Energy generation, Oxygen, Reynolds number, Rotation, Simulation, Vorticity, Water
Proceedings Papers

Investigation of Three-Dimensional Lagrangian Coherent Structures in Flow Past Single and Arrays of Plate: Linear Energy Harvesting Applications

Bashar Attiya, I-Han Liu, Muhannad Altimemy, Cosan Daskiran, Alparslan Oztekin
Proc. ASME. IMECE2018, Volume 7: Fluids Engineering, V007T09A069, November 9–15, 2018
Paper No: IMECE2018-86332
DOI: https://doi.org/10.1115/IMECE2018-86332
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Topics: Energy harvesting, Flow (Dynamics), Large eddy simulation, Plates (structures), Turbulence, Dynamics (Mechanics), Eddies (Fluid dynamics), Engineering simulation, Reynolds number, Simulation