Extracted Region from snappyHexMesh
 

Hello all,

I am currently working on a project in the concept of conjugate heat transfer. Therefore, a multi-region mesh consisting of 2 solid and 1 fluid region is required for me. Although sHM works out perfectly on solid regions, a thin mesh layer is being extracted from the bottom surface of the fluid region. I am attaching an illustrative view of what I am trying to explain (see carefully, it is really thin, like a shell around the surface). Does anybody know what the trouble I'm challenging is?

Thanks a lot.