PyAMS (Python for Analog and Mixed Signals) CAD approach
Software for electromagnetic simulation
Software for calibration of hyperelastic constitutive models
Open Source Planar Linkage Mechanism Simulation and Synthesis Software
OpenNum lets you distribute solvers with a nice graphical interface
Application Integration for HPC Multiphysics
Open Knowledge on engineering development.
An Open source Analysis and SImulation Toolbox for Fuel Cells