Rotor Region - Files Preparation
For creating a new mesh with snappyHexMesh it is recommended to create new OpenFOAM clean test case just with system and constant directories. Go to your user directory and create directories for rotor region mesh. It is recommended to copy a similar tutorial case and modify just the different parts of the case.
There are no limitations on number of surface .STL files. The only (but not easy) requirement is the surface model has to be perfectly closed – waterproof model. The interface between rotor and stator region is defined by RF-nq28_Co1_Outflow-scaled.stl file.