How do I change the zone type from wall to a pressure outlet in FLUENT?
This can be done in one of two ways:
1) In GUI (Graphical User Interface)
Click on the zone whose type you want to change under "Boundary Conditions".
Select the type "pressure outlet" from the drop-down menu under "Type".
2) In TUI (Text User Interface, also known as the command line)
Type the command:
Enter zone ID/name and then enter the boundary type as pressure-outlet.
Note: These steps can be performed to change any boundary zone from one type to another.