I have a pressure relief valve, which has been tested in flow lab with water as fluid. Inlet pressure 100 psig and outlet exposed to atmosphere. And i have tested flow rate value with me. I am trying to simulate the same in solidworks flow simulation. I am setting boundary conditions as below.
Inlet = Total Pressure = ( gauge pressure + atmospheric pressure ) = 100 + 14.7 = 114.7 psi
Outlet = Environment Pressure = 14.7 psi
Is it right boundary conditions ? Kindly help
Well your total pressure depends on whether you want the fluid coming in to have a velocity, or on the other hand you may be simulating fluid coming in from stagnation, for example from a pressurized tank. Use the thermodynamic properties in the boundary conditions to set appropriate fluid properties.