[DanFO]

Hello everyone,

My question is simple: How to impose motion to the rotor disk?

I refer to the rotor disk in the tutorial case "rotorDisk" found in: $FOAM_TUTORIALS/incompressible/simpleFoam/rotorDisk.
Or, if you prefer online: https://develop.openfoam.com/Develop...Foam/rotorDisk

I want to impose an oscillatory motion (sinusoidal) to the disk and analyze its transient response. I think the first step is to change the default solver "simpleFoam" (steady-state solver) to "pimpleFoam" (transient solver). And I managed to do this. Second step is to impose the motion, and I know how to do it for a Boundary Field using dynamicMeshDict and pointDisplacement (as we do for an oscillating cylinder). But the problem is that the rotor disk is not a boundary, it is a region of cells inside the domain and I didn't understand clearly how it is defined.

So, I would appreciate if someone could explain how the disk region is defined and how to impose an oscillatory motion to it.

(I'm using OpenFOAM 7, and I'm quite new to the software)

Thank you!