Reply To: Perforated Wall Boundary Condition

[alex.purvis.572]

Hi, I'm researching the effects of a porous wall in a transonic wind tunnel. I have a UDF from a previous study to model the porous wall as a mass flow outlet but I'd like to compare this to the inbuilt porous/perforated wall setting in fluent. I have the porous wall currently set, obviously, as a wall but when I try to change the setting to Perforated Wall in the Boundary Conditions settings as suggested by @DrAmine, the button appears greyed out. Can anyone suggest a reason for this? It's not the first problem I've had like this - I had a file that worked perfectly on my supervisor's computer but when opened in mine it kept resetting the properties of air and not giving me access to the dropdown box. Turned out to be a version issue but we use the same version now so I don't know how to implement the perforated wall. Please Help