Two layer couette flow (2D) using interFoam
 

hi,
I am trying to simulate two layer coutte flow for the fluids of different viscosity (2D). Fluid phases are setup using setField and upper layer is moving with some velocity and lower wall is fixed . Inlet and outlet is having cyclic boundary condition . Waves are forming at the interface of two fluids however it is not stable . I am using interFoam solver . Kindly help me to resolve the problem .