TCAD Device Simulator
Travel Market Simulator
Fluid2D is the Swiss army knife of 2D CFD
A FDTD solver for electromagnetic wave simulations on a GPU cluster
BlueSky Open Air Traffic sim, (Windows/Linux/Mac, Python 2.x based)
Create lipid-bilayer models of arbitrary geometry.
Power flow library in C++
Calculate electronic properties of graphene-like nanoribbons
Numerical Transient Simulator for Power System
A raytracing framework for optical/non-optical physics simulations
Distributed Computing with JavaScript
Advanced numerical instruments: adaptive meshing, FE methods, solvers