interFoam -- pressure loss
 

Hi everyone!

im doing a 2phase Flow simulation of propane in an fluid distributor for an evaporator in a compression-chiller-circuit.

I know the pressure after the expansion valve(for example 3.5bar) and the massflow for alpha=1 and 0.

what i dont know is the pressure at the outlets and thats exactly what i want to calculate.

At the moment i've set:

U - inlet_gas:
type flowRateInletVelocity;
massFlowRate constant 0.009; //kg/s

U - inlet_liquid:
type flowRateInletVelocity;
massFlowRate constant 0.021; //kg/s

U- outlets:
type zeroGradient;

but i dont know what to set for the pressure.
If i set the pressure of 3.5 bar at inlet and zeroGradient at the outlet, the resolution looks strange...

Does anybody know what to do?

thanks for reply,
Ferdi

hi everyone!

i figured it out. my problem was the kinematic viscosity, i used , instead of . for decimal separation... :p

greetz
FerdiFuchs