Knowledge of CFD (Computational Fluid Dynamics) solver with a specific focus on energy systems design. Accurate use of CFD solver needs to well understand modeling of physical process and their numerical resolution (numerical method, turbulence models, multiphase flows, complex geometries, ...). First part of these courses will be a complement of previous academic years in fluid mechanic and numerical methods. After this first common part, 3 specific courses will be available: • Specific overview for numerical resolution of thermal hydraulic problems • Specific overview of meshing and geometric models • Specific overview on optimization and optimal design