[Akinna]

Hello,

I've been working to solve this problem for some days now, but I can't get a solution. Also the posts in forums and google search do not help.

I try to mesh a channel with a concave surface (see attached pictures). It seems like snappyHexMesh is doing the first snapping step, but not the snapping to the surface. I already tried to increase the number of cells in my background mesh and the refinement level. Also I tried to increase and decrease the number of maximum local and global number of cells but nothing helps.
SnappyHexMesh meshes the same channel with a non concave surface (a rectangular channel) with the same meshing options quite well.

Do you have any suggestions or ideas where my mistake is?

Thanks in advance for any input!

Akinna

STL_ConcaveSurface.jpg

Mesh_ConcaveSurface.jpg

blockMeshDict.txt

snappyHexMeshDict.txt