The regions saved to the .gtm and .def files are BLADE, PER1, PER2, HUB, SHROUD, INFLOW and OUTFLOW.
If the mesh has an inlet or outlet 3D region, additional regions will be created in the files for these domains with the suffix Inlet or Outlet. For example, the regions for a case with an inlet 3D region are PER1 Inlet, PER2 Inlet, HUB Inlet, SHROUD Inlet, INFLOW and OUTFLOW Inlet. The same applies for an outlet 3D region and for the Passage Region. For the parts specific to a region (BLADE for Passage, INFLOW for Inlet, and OUTFLOW for Outlet), no suffix is added.