Zombie thread, back from the dead!
I went looking for a thread wherein I'd mentioned using Blender for CFD. Lo and behold, there is a thread [this very one] from 2011 on the very subject.
Anyways, this isn't about CFD, but I was trying to understand de-noising and the compositor and this video*,
at this time stamp, shows an add-on that enables vehicle suspension physics. So you can —you know— CFD on uneven terrain.
* Classy Dog Studios: Car VFX with Blender & After Effects