How to move a body along a circle path in openFOAM?
 

I have a big square and a inner small square. The inner small square is moving along a circle path(not rotate around a point). How to do it in OpenFOAM?

In Fluent, I can use DEFINE_CG_MOTION to assign velocity for the inner square as a rigid body at each time step.

In OpenFOAM, I thought topoChangerFvMesh and 6DoFRigidBodyMotionSolver may fulfill my goal. But it looks like that this motion solver can only move object along a line. And it's used to model the influence of flow toward body. My square's motion is known and fixed.

A solidBodyMotionFunction tabulated6DoFMotion can be used to specify displacement at each time step however my moving mesh will have topology change so that mesh motion is not enough.