FlightGear Flight Simulator: free open-source multiplatform flight sim
SUMO is a microscopic, multi-modal traffic simulation.
Physically accurate and validated GPU ray-tracer
Object-oriented equation-based modelling and optimisation software
Industry standard communication with compliant image generators.
Plug&Play Hardware simulation over a virtual bus system.
Open source software calculating industrial noise in the environment
System dynamics program with additional features for economics
Virtual X-Ray Imaging Library on GPU
FEATool Multiphysics is an easy-to-use FEA and CFD Simulation Toolbox
ASALI is an open-source code for chemical engineers
Measurement and Automation Framework + Tool
Double slit experiment visualization tool loving multicore processors
IDE for modeling and simulating discrete systems
Open-Source Multiphysics FEA (FEM) Package
slab3d is a real-time virtual acoustic environment.
software for DFA method
Interactive geometry software for Euclidean and non-Euclidean spaces
NETGEN is an automatic 3d tetrahedral mesh generator
Demonstrates a quadtree for spatial indexing of triangles
HP-41cx Emulator
The software for systems biology/pharmacology modeling