[pianaCFD]

Hello guys,


I have a problem with my domain. It is a simple domain, but it has problems with reverse flow. I can't really understand what is the problem.


I have simple inlet flow set at 7 m/s as shown in the attachments below and a pressure outlet set to 0. Symmetry conditions are applied around the sides of domain and a transient analysis has been set.



Probably it is something easy to solve but I can't really understand why it is not working. I've also tried to change the orientation of the surfaces and to set the outflow in place of pressure outlet, but nothing happened.


Thank you for any advice.