OpenFOAM is a software environment for computational fluid dynamics (CFD) and related computations.
OpenFOAM provides a C++ library and tools for setting up, meshing, solving, computing properties, and post-processing continuum mechanics, especially computational fluid dynamics. OpenFOAM includes solvers for a number of applications and provides an environment in which users can build their own.
Benchmark
OpenFOAM benchmark at Pirineus
Actual speed-up (green) and ideal speed-up (blue) vs. number of cores for a calculation (motorBike tutorial) with OpenFOAM 2.0.0 involving 60·106 elements, simpleFOAM solver.