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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Fluent Pressure Outlet Boundary Condition › Reply To: Fluent Pressure Outlet Boundary Condition

September 4, 2017 at 7:26 pm
Holger Grotjans
Ansys Employee

Hi, you are looking here at the "backflow" pressure. This is the pressure specified when you have backflow, i.e. inflow at the outlet. By using Total Pressure you will automatically have a static pressure which is smaller than the Gauge pressure, as Ptot=P+Pdyn,  hence promoting the flow out of the domain instead of inflow.


See section 6.3.9.1.3 in the documentation for details.