All CFD code can be found here:
Here
All Grid Generation code can be found here:
Here
WSAD - Move Camera Position Right-Click-Hold - Move Camera LookAt (Sometimes snaps aplogies)
Currently quite un-optimized and slow so run at your own risk. 2D simulations run fairly well, 3D takes a large performance hit however.
Based upon Jos Stam's paper: Real-Time Fluid Dynamics for Games