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physics.flu-dyn2025
Learning Rarefied Gas Dynamics with Physics-Enforced Neural Networks
Ehsan Roohi, Ahmad Shoja-Sani, Bijan Goshayeshi +1
This study develops and validates neural network frameworks with physics-based constraints for surrogate modeling of rarefied gas dynamics across different levels of complexity. As…
physics.flu-dyn2025
Multi-Objective Aerodynamic Optimization of Ride Height and Rake Angle in a Sedan Car Using CFD and Machine Learning
Mahdi Kheirkhah, Ehsan Roohi, Mahmoud Pasandidehfard
This study investigates the aerodynamic performance of an Audi A4 sedan using CFD analysis. A 3D model was developed in SolidWorks and validated against DrivAer Notchback wind-tunn…
physics.flu-dyn2025
Passive Cavitation Mitigation on Hydrofoils via Porous Media: A Comparative Study of LES and RANS Models
Ali Alavi, Maziyar Ghasemnezhad, Ali Sangtarash +1
This study numerically investigates the use of porous media as a passive strategy for mitigating cavitation on a NACA 66 (MOD) hydrofoil subjected to unsteady two-phase flow.