[Turbulent]

Hello,

I've trouble to define the outflow BC while calulating a steady free surface flow past a ship hull.

I want to ask if it's possible to set the hydrostatic pressure on the outflow BC of the domain in case the free surface height on the outflow is unknown a priori by using the following CEL:

hout=areaInt(Water.Volume Fraction)@Outflow/DomainBreadth
WaterVFout=if(z<hout,1,if(z==hout,0.5),0)
AirVFout=1-WaterVFout
PressureOut=(DenWater-DenAir)*g*abs(z-hout)*WaterVFout

When I solve the problem I get error in the few first timesteps unit it gets error and stops.

Any help ?

Thanks
Turbulent.