For multiphase flow in a porous media problem, if superficial velocity formulation is selected, then C_U(cell, thread) represents the superficial velocity or physical velocity?
Good question, I don't know. Run a simple test case and dump the result of C_U(c,t) into a UDM and compare. Then report back.
Ansys customers with active commercial software licenses can access the
customer portal and submit support questions. You will need your active account number to register.