The OpenFOAM® (Open Field Operation and Manipulation) CFD Toolbox is a free, open source CFD software package produced by OpenCFD Ltd. It has a large user base across most areas of engineering and science, from both commercial and academic organisations. OpenFOAM has an extensive range of features to solve anything from complex fluid flows involving chemical reactions, turbulence and heat transfer, to solid dynamics and electromagnetics. It includes tools for meshing, notably snappyHexMesh, a parallelised mesher for complex CAD geometries, and for pre- and post-processing. Almost everything (including meshing, and pre- and post-processing) runs in parallel as standard, enabling users to take full advantage of computer hardware at their disposal.
If you do not plan on doing development tasks with OpenFOAM, there is an updated version of the program available in the AUR at https://aur.archlinux.org/packages.php?ID=27886. For most users, this will be everything needed to get an installation up and running.
For installation of OpenFOAM in a development environment, the process is fairly straight forward on Arch Linux. The basic steps are as follows:
- Obtain source files from OpenFOAM
- Prepare build directory
- Create Preference File and Set Environment Variables for your installation
- Compile OpenFOAM sources
- Test OpenFOAM installation
Obtain Source Files
Latest Stable Release
Paste the following code into your ~/.bashrc file. Whenever you want to run OpenFOAM you just have to type of20x to initialize the environment.
# OpenFOAM Install export FOAM_INST_DIR $HOME/.OpenFOAM alias of20x 'source $FOAM_INST_DIR/OpenFOAM-2.0.x/etc/bashrc'