Fusion of two different faces in one during snappy-hex meshing process


Hi everyone!

I stuck with this problem: trying to mesh 5-region geometry for CHT solver with (at least) two separate faces I want to be inlet and outlet patches after meshing:

But after manual meshing Iโ€™ve got the mesh with one joint patch composed of two faces :pensive: :

The question is: can I set some parameter in snappy-hex mesher to avoid that? Or maybe there is a way to separate patches after meshing manually? Any ideas here are welcomed :slight_smile:

Thank you in advance.

BTW - the case with one fused inlet patch works fine, I checked it, but unfortunately itโ€™s not the configuration I wanted.


Hello @pgromov,

If a solid has 2 faces sharing the boundary with the same face of another solid/bounding box then it is considered to be a single patch. At the moment this is not possible to split it as 2 patches and we are trying to find a solution for this problem. We will get back to you as soon as this issue is solved. Thank you for your understanding.

Best regards,
Sam (@sjesu_rajendra )


Thank you for the answer!