Question

Which of these statements is false regarding the pressure correction at boundaries?

(a) Pressure reference is set at the inlet boundaries

(b) Pressure reference is set at the outlet boundaries

(c) The link to the inlet boundary side is suppressed

(d) The link to the outlet boundary side is suppressed

I got this question during a job interview.

This intriguing question comes from Boundary Conditions topic in section Boundary Conditions of Computational Fluid Dynamics

Answer 1

Right answer is (b) Pressure reference is set at the outlet boundaries

The best I can explain: Pressure reference is set at the inlet boundaries and the link to the inlet side is suppressed. In the outlet boundaries, there is no need for setting another reference pressure but the link to the outlet side is suppressed.