[swati_mohanty]

I am simulating a 3-D multiphase system (liquid + two solids). I have an external force affecting one of the solid phases and therefore adding a solid momentum source term for this phase. however, I find that the velocity of the other two phases are also getting affected. In the interaction panel, I provide interaction only between the liquid and the solid phases and no interaction between the solid phases. I want only the liquid phase to have affect on the solid and not the solid on the liquid phase. How can I do this in Fluent