1. SU2 (Stanford University Unstructured) Use : CFD, aerodynamic shape optimization, adjoint methods. Language : C++ Strengths : Advanced optimization & adjoint solvers. Excellent for aerospace and compressible flows. Python interface for automation. 2. Code_Saturne Use: General-purpose CFD (incompressible & compressible flows) Developer: EDF (Electricité de France) Strengths: User-friendly GUI available. Strong thermal and multiphysics coupling. Efficient for industrial simulations (turbines, HVAC). 3. Elmer FEM Use : Multiphysics simulations (fluid, structural, thermal, etc.) Developer : CSC – IT Center for Science (Finland) Strengths : Finite element method-based. Strong multiphysics coupling: thermal-fluid-structure. Good for electromagnetics and biomechanics too. 4. Gerris / Basilisk Use : Adaptive CFD for free-surface and multi-phase flows. Developer : CNRS, France Strengths : Octree/adaptive mesh refinement. Basil...