a parametric 3D CAD modeler
Free and open source pattern design software
FEATool Multiphysics is an easy-to-use FEA and CFD Simulation Toolbox
Open Source Planar Linkage Mechanism Simulation and Synthesis Software
Application Integration for HPC Multiphysics
Open DXFs with QCad
An Open source Analysis and SImulation Toolbox for Fuel Cells