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Precompiled packages (CentOS/RedHat/Fedora)

The packages do not contain visualization (eg, ParaView/runTimePostProcessing) or external-solver (eg, PETSc) modules:
see the corresponding FAQ

Rocky/Fedora/CentOS/RedHat

Rocky/Fedora/CentOS/RedHat

For RedHat-based systems, OpenCFD Ltd. current uses the copr infrastructure to provide RPM packages. These precompiled packages leverage standard components available from EPEL (Extra Packages for Enterprise Linux) and some elements of PowerTools as well.

This information unfortunately no longer applies to CentOS-9/RedHat-9. The PowerTools repository has been replaced with a CBR repository with much limited functionality. In the process, they have removed the metis and scotch libraries which are essential for domain decomposition!

These should also be enabled prior to further installation (Fedora users can possibly skip this part).

yum -y install dnf-plugins-core
yum -y config-manager --set-enabled PowerTools
yum -y install epel-release

# For RockyLinux:
crb enable

Enable copr for OpenFOAM as per the copr documentation

dnf -y copr enable openfoam/openfoam

# On older systems:
yum -y install yum-plugin-copr
yum -y copr enable openfoam/openfoam

Can now install the desired OpenFOAM packages. Since multiple OpenFOAM versions can be installed simultaneously, the tiny openfoam-selector can useful for switching between versions.

yum -y install openfoam-selector

Finally install the most recent runtime-only package (or other combinations):

yum -y install openfoam

Supported versions and distributions

These may change from time to time, but the general goal would be maintain the last two (or three) versions of OpenFOAM supported on latest two EPEL versions and a newer Fedora. However, sometimes updated system packages (Fedora) mean that one of the older OpenFOAM versions needs to be dropped prematurely.