Reply To: ANSYS FLUENT – DYNAMIC MESH

[Federico]

For option 1, you should set the turbine walls with Rigid body motion with the proper 6DOF properties/motion. Set the cylindrical fluid cell zone to Rigid Body motion with passive 6DOF. This will make sure that all boundaries associated with this cell zone rotate together, while the Passive option tells the solver to not account for the forces on this zone for the 6DOF calculations.

That is all you need. By default, all other zones will be set as Stationary, but you do not need to explicitly assign them.