Uncommenting the patches provides a convenient way to use the patches in the background mesh
to define the external boundary of the final mesh. Replaces previous setup with a separate
blockMeshDict.extPatches file.
The templates include a stategy to simplify meshing with snappyHexMesh,
particularly to help generate an initial mesh quickly that can subsequently be
improved. The templates are setup to enable rapid initial simulations, typically
with simpleFoam. The initial templates cover simple inflow-outflow and closed
domains, including rotating geometry, and an example axisymmetric flow. For
more details, consult the README file accompanying each template case.
The cases are located in $FOAM_ETC/templates