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.$HOME/foam/${USER}2.3 as described at the beginning of chapter 2.
One advantage of this is that the $OpenFOAM_RUN environment variable is
set to $HOME/foam/${USER}2.3/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
$OpenFOAM_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.
