michele rocchi
Subscriber

Dear abenhadj,


There is a free surface at the top.


I can avoid  the free surface calculation (which I'm not interested in) if I use degassing condition for the opening on the top.


In that case I'm not allowed to set a pressure for the boundary. And I think this means that pressure in the domaine would be undetermined since there would be no other boundaries where I impose the pressure.


BR


Michele