Physically accurate and validated GPU ray-tracer
ASALI is an open-source code for chemical engineers
Static and Dynamic Structural Analysis of 2D and 3D frames.
The DREAM toolbox is a free open source acoustic field simulation tool
SPHERES Facility software for scientists
Parser for PTRAC files produced by MCNP
Open source 3D Matlab Isogeometric Analysis Code
MIT's spacecraft simulator for control algorithm development
collection of illustrative programs:small games, simulators: C, Matlab
Toolkit for Automatic Control and Dynamic Optimization
Stochastic parameter sensitivity analysis for chemical networks
Easy to use physics simulation combining ODE with OpenInventor.