Reply To: How one can make a simulation of linear translation using Define_cg_motion and overset mesh?

[RK]

Hello That happens because of incorrect dynamic zone selected. Primarily, the whole moving component cell zone (not just the wall or overset boundary) must be added as rigid body motion. For CG motion (not 6DOF) you do not need necessarily to add the wall and overset boundary as rigid body, but you can leave them in the list.