I have a 2 body system, which is consisted of two cylindrical zones. Outer cylindrical zone is having a liquid and inner cylinder is a solid. Inner cylinder is a solid, rotating with a certain velocity. Due to the rotation of the inner cylinder, outer fluid will also rotate. Do I have to use UDF in all those 2 moving zones? What I am using is Define_CG_motion for the inner solid cylinder. Is this correct?. Should I use Define_SDOF_properties for the fluid zone, because it is deforming as well as rotating? Should I use define_geom macro for the deforming interface?
Any help is appreciated.
Thank you.
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