[ErenC]

Hello,

I am trying to create a domain with a blank interior region. I literally wasted too much time therefore I wanted to in ask here. This is the closest I can get. I tried to construct blocks. If I merge blocks, I cant select interior regions faces(blank area) to apply boundary condition, If I wont merge blocks, extra domains are appearing and I got error in openFoam because I am not applying any BC to those extra domains, because they are not a boundary, they are interior faces. But pointwise accepts them as boundary. When I delete the extra domains blocks are disappearing.

Blue area is the interior region and red area is the extra domains.

I can't add photo, its forbidden. Here is the link to it:
https://ibb.co/TYnRxRd
Any help would be great,
Eren.