This chapter deals with the file structure and organisation of OpenFOAM cases.
Normally, a user would assign a name to a case, e.g. the tutorial case of flow in a
cavity is simply named cavity. This name becomes the name of a directory in
which all the case files and subdirectories are stored. The case directories
themselves can be located anywhere but we recommend they are within a run
subdirectory of the user’s project directory, i.e.$HOME/OpenFOAM/${USER}-1.5
as described at the beginning of 2. One advantage of this is that the $FOAM_RUN
environment variable is set to $HOME/OpenFOAM/${USER}-1.5/run by default;
the user can quickly move to that directory by executing a preset alias, run, at
the command line.
The tutorial cases that accompany the OpenFOAM distribution provide useful
examples of the case directory structures. The tutorials are located in the
$FOAM_TUTORIALS directory, reached quickly by executing the tut alias at the
command line. Users can view tutorial examples at their leisure while reading this
chapter.
