Model-rocketry aerodynamics and trajectory simulation software
Massively parallel rigidbody physics simulation
A minimalistic digital logic simulator
A Control Systems Toolbox for Julia
A cross-platform statistical package for econometric analysis
FlightGear Flight Simulator: free open-source multiplatform flight sim
The Open Source CFD Toolbox
An advanced network simulator to design and configure virtual networks
General Mission Analysis Tool
Data Analysis, Simulations and Visualization on the Sphere
SUMO is a microscopic, multi-modal traffic simulation.
A library for polyhedral mesh generation
Industry standard communication with compliant image generators.
System dynamics program with additional features for economics
A library for scientific data visualization
Digital Circuits Design and Simulation
An EnergyPlus shell for parametric studies and more ...
A 3D surface and volumetric mesh generator for MATLAB/Octave
physics-based multicellular simulator
Individual-based forward-time genetics simulation software