Vortexje is an Open Source implementation of the source-doublet panel method. It features a modern C++ API, gmsh file I/O, optional wake convection, and wake-body and wake-wake interaction.
DEVSIM is semiconductor device simulation software which uses the finite volume method.
It solves partial differential equations on a mesh.
The Python interface allows users to specify their own equations.
A graphical, distributed IRC client.
A Magento extension that adds Google Maps for your stores.