Интересные ссыкли на бесплатное ПО

CAD Software

Graphite
OpenCASCADE

FEM - Solvers

Code-Aster
getDP
CALCULIX

CFD - Solvers

OpenFOAM

Multibody Dynamics - Solvers

SICONOS
MBDyn 

Post-Processors

VTK
Paraview

Pre-/ Post-Processors and Mesh Generators

Salome
Gmsh