Hi, what the different of setting average pressure for inlet and mass flow rate for outlet,with mass flow inlet & pressure outlet
Re: BC setting
Hi richard!! If u use a mass flow rate at the outlet, you enforce the fluid to go out of your domain with a normal direction. If you use a pressure at the outlet, then your fluid are not going to be enforced to go out normally to the boundary limit. The BC could modify the velocity upstream the outlet.
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