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Ehsan Roohi
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Journal Articles

Numerical Simulation of Free Surface Water Waves Around Wavy Hydrofoils: Prediction of Hydrodynamic Coefficients Using Machine Learning

Ali Tavakoli, Ehsan Roohi, Mohammad Sanaee Namaghi
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2024, 146(2): 021501.
Paper No: FE-23-1244
https://doi.org/10.1115/1.4063078
Published Online: October 11, 2023
View Article titled, Numerical Simulation of Free Surface Water Waves Around Wavy Hydrofoils: Prediction of Hydrodynamic Coefficients Using Machine Learning
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Topics: Computer simulation, Drag (Fluid dynamics), Hydrofoil, Machine learning, Computational fluid dynamics, Pressure, Fluids, Waves, Turbulence, Water
Journal Articles

DSMC Simulation of Low Knudsen Micro/Nanoflows Using Small Number of Particles per Cells

Ali Amiri-Jaghargh, Ehsan Roohi, Hamid Niazmand, Stefan Stefanov
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. October 2013, 135(10): 101008.
Paper No: HT-12-1367
https://doi.org/10.1115/1.4024505
Published Online: September 11, 2013
View Article titled, DSMC Simulation of Low Knudsen Micro/Nanoflows Using Small Number of Particles per Cells
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Topics: Algorithms, Collisions (Physics), Flow (Dynamics), Particulate matter, Simulation, Temperature, Cavities, Filtration
Proceedings Papers

Detailed Investigation of Thermal and Hydrodynamic Flow Behaviour in Micro/Nano Cavity Using DSMC and NSF Equations

Alireza Mohammadzadeh, Ehsan Roohi, Hamid Niazmand, Stefan Kanchev Stefanov
Proc. ASME. ICNMM2011, ASME 2011 9th International Conference on Nanochannels, Microchannels, and Minichannels, Volume 1, 341-350, June 19–22, 2011
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2011-58108
https://doi.org/10.1115/ICNMM2011-58108
View Paper titled, Detailed Investigation of Thermal and Hydrodynamic Flow Behaviour in Micro/Nano Cavity Using DSMC and NSF Equations
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Topics: Cavities, Flow (Dynamics), Boundary-value problems, Equilibrium (Physics), Flux (Metallurgy), Heat, Heat flux, Shear stress, Simulation, Temperature
Proceedings Papers

Study of Gas Flow in Micronozzles Using an Unstructured DSMC Method

Ehsan Roohi, Masoud Darbandi, Vahid Mirjalili
Proc. ASME. ICNMM2009, ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels, 417-424, June 22–24, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2009-82180
https://doi.org/10.1115/ICNMM2009-82180
View Paper titled, Study of Gas Flow in Micronozzles Using an Unstructured DSMC Method
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Topics: Gas flow, Micronozzles, Nozzles, Boundary layers, Shock (Mechanics), Flow (Dynamics), Knudsen number, Pressure, Subsonic flow, Algorithms
Journal Articles

Direct Simulation Monte Carlo Solution of Subsonic Flow Through Micro/Nanoscale Channels

Ehsan Roohi, Masoud Darbandi, Vahid Mirjalili
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. September 2009, 131(9): 092402.
https://doi.org/10.1115/1.3139105
Published Online: June 24, 2009
View Article titled, Direct Simulation Monte Carlo Solution of Subsonic Flow Through Micro/Nanoscale Channels
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Topics: Flow (Dynamics), Pressure, Simulation, Subsonic flow, Polishing equipment, Temperature, Mach number, Boundary-value problems, Heat flux, Nanoscale phenomena
Proceedings Papers

DSMC Solution of Supersonic Scale to Choked Subsonic Flow in Micro to Nano Channels

Ehsan Roohi, Masoud Darbandi, Vahid Mirjalili
Proc. ASME. ICNMM2008, ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels, 985-993, June 23–25, 2008
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2008-62282
https://doi.org/10.1115/ICNMM2008-62282
View Paper titled, DSMC Solution of Supersonic Scale to Choked Subsonic Flow in Micro to Nano Channels
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Topics: Subsonic flow, Pressure, Boundary-value problems, Flow (Dynamics), Knudsen number, Physics, Polishing equipment, Shock (Mechanics), Simulation, Supersonic flow