infiltrations/exfiltrations
 

Hello friends.


For my heat transfer simulation I have some gaps which act as infiltrations/exfiltrations for my domain so I need them to act as an inlet and outlet at same time based on pressure gradiant!

Do you have any suggestion about proper boundary condition that I can apply for these faces?

Previously I modeled them as pressure outlet and I had reversal flow on some section and i though that could be good representative of situation that I want to simulate ! However now since I added a velocity inlet to my model reversed flow just dissapierd! Also I realized from other treads that having the error of reversal flow could be a problem in terms of validation!



Thanks for your help in advance :)

Help
 

no Idea ? If someone knows plz help