OpenCFD develop OpenFOAM in the Linux/UNIX operating system because:
we believe it is the best platform for this kind of high end simulation code
development and operation; Linux is efficient, robust, reliable and flexible and
undergoes rapid development and improvement; Linux is open source, like
OpenFOAM; Linux is very effective for parallel operation on Beowulf
clusters.
OpenFOAM is open source software so people can freely compile it on any
operating system they choose. Most OpenFOAM users are running Linux, so this
site offers the download of binaries for selected Linux systems.
As the present time we are unaware of any binary distributions for Windows
or MacOSX. However, ports to these operating systems have been the subject of
debate on the OpenFOAM discussion site, which may provide the best source of
information on the matter.