FAMUS(Fully Automated MUlti-physics Simulator) is a compressible/incompressible CFD analysis program that does not require volume mesh by using a meshless technology. It was jointly developed by NEXTfoam and Hypersonic Lab. of Seoul National University using meshless technology transferred from the Agency for Defense Development.
FAMUS is completely different from existing programs such as SPH(Smoothed Particle Hydrodynamics) or LBM(Lattice Boltzmann Method). Because FAMUS use a method similar to the finite volume method using only points distributed in space. FAMUS resolved the non-conservative problem that was a limitation of the existing meshless technique by developing the GC-LSM(Geometric conservation – Least Square Method) technique. Through the use of AUSMPW+, MLP3 with third-order spatial accuracy, numerical instability in shock waves has been overcome, and high-order accuracy flow analysis is possible even in the supersonic region.
Because only points are used without volume mesh, the excessive preprocessing time that occurs in the existing mesh based method can be reduced, and there are no problems with the instability of the solver and the inaccuracy due to the mesh quality. In addition, it is an innovative method that can easily implement complex motions of objects, relative motions between multiple bodies, and deformation of objects without regenerating volume mesh.
In addition, it is a multi-physics analysis program that can analyze not only compressible / incompressible flow but also equilibrium/non-euqilibrium plasma phenomena. By leveraging the CEA(Chemical Equilibrium with Application) of NASA's Glenn Research Center, you can implement equilibrium-state property tables for more than 2000 gases.