Mechsim

Multiphysics Modeling and High-Fidelity Simulation in Aerospace, Marine, and Energy Engineering

In the fields of aeronautics and space, modeling, numerical computation, simulation, and digital validation are essential in the design of flying vehicles and in all related technological domains. Our team is strongly oriented toward experimental work, physical modeling, and high-fidelity numerical simulation, combining theoretical insight with practical applications. In Numerical Analysis, we focus on the dynamic behavior of ships at sea, modeled by the Fokker-Planck-Kolmogorov equation, and on the simulation of neutron transport in complex media, particularly the evolution of neutron populations. These topics are tackled using asymptotic models and advanced numerical algorithms capable of capturing large-scale phenomena and specific physical regimes. We aim to develop innovative computational strategies that enhance the modeling and simulation of these multiscale systems. In Structural Mechanics, we analyze and optimize the performance of composite and nanocomposite materials and structures under complex multiphysics loading conditions—such as the mechanical behavior of hydrogen storage tanks or bio-sourced composites—and investigate hydrogen embrittlement mechanisms in materials. Our research also addresses the durability and aging of polymer nanocomposites, along with the development of advanced identification techniques (e.g., 2D optical imaging, 3D tomography) to characterize material interfaces. These studies are particularly relevant to the transportation and energy sectors, where performance, reliability, and longevity are critical. In Fluid Mechanics and Energy Systems, we explore energy optimization through numerical and experimental analysis of mass and heat transfer in two-phase flows (e.g., heat pipes, loop thermosyphons), and investigate vortical and turbulent flows using the Lattice Boltzmann Method. High-fidelity simulations provide detailed insight into near-wall turbulence and flow-wall interactions, contributing to better turbulence modeling and enhanced heat transfer prediction. We also study aerodynamic drag reduction for bluff bodies and control strategies for flows around the Ahmed body. A recent and growing research direction focuses on the thermal management and optimization of battery cooling systems for electric and hybrid vehicles—an area of increasing technological and environmental significance.