Internal Wall Boundary Conditions Missing
 

Hello,
I am working on setting up a mesh in the fluent mesher and have run into an issue with a named selection being missing from the surface mesh. The geometry consists of an airship hull made by revolving a profile curve inside of a box shaped fluid region (the hull is then boolean subtracted from the box). During mesh setup, all three of my named selections are present (inlet, outlet, hull), however the hull named selection disappears after surface meshing and is not shown under mesh object or listed as a boundary condition. I have tried setting this up in a variety of ways using various tools in both spaceclaim and design modeler but it seems no matter what I do, fluent does not recognize the hull as a boundary. I also checked many times to ensure that the named selection is assigned on the fluid object in the geometry. I am very confused as to what could cause this, am I doing the setup wrong?


Thank you!