GAUSS (GAs-dynamics with UnStructured meshes and Scalability) is a Direct Simulation Monte Carlo (DSMC) – Particle in Cell (PIC) code that models gases using collisions, chemistry, electric field effects and gas-surface interactions. It uses an octree adaptive refinement mesh (AMR) to track, group and list computational particles and output flow variables in three dimensions. Physical surfaces embedded in the computational domain are represented by triangulated surfaces.
PASTEUR(Preprocessing And Shaping Tool Engineered for UnstRuctured Meshes) is an in-house developed preprocessing framework that manipulates computational meshes while utilizing other open source software such as Gmsh, Salome, enGrid etc.
HUYGENS (High performance UtilitY for response surface GENeration and importance Sampling) is an optimization software which initially samples using stochastic approaches, generates response surfaces, adaptively refines the response surfaces based on error threshold and finally use importance sampling algorithms to cover the design space effectively to decrease the required number of modeling simulations while keeping the fidelity of the results high.