We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.
Rob
Forum Moderator

Have you defined a wall between the solid zones? Fluent must have a surface bounding any volume zone to apply boundary conditions to; interior is a type of surface that doesn't do anything in the model other than provide a means to ID that bounding surface.Â