I have dsigned a new 4 inch valve which has to be simulated in Solidworks. May i know the boundary conditions that shall be given to calulate the pressure drop? I have given the inlet boundary condition as  1 bar and 60°F... What shall be boundary conditi

flow works in one of 2 ways

inlet flow with an outlet pressure > output is the pressure at the inlet

pressure on the inlet, pressure on the outlet > output is the flow rate