[ribe]

I would like to merge a tet mesh and a hex mesh, where the tets are inside a hole in the hex mesh; think of it as a smaller cylinder inside a larger one. I thought stitchMesh could be used for this kind of operation.

To get familiar with stitchMesh I first created a small test problem: a cube where I made one quarter tets and the rest hex; see attached image. I created one patch for the interface for each mesh type, exported one tet mesh and one hex mesh, run mergeMesh without problems and then tried stitchMesh.

Here, however, I run into a problem along the edge. Searching the forum this was discussed long time ago without any clear solution. I tried some alternatives without success, like creating two separate interfaces and merge them one after the other.

Any suggestions on how to proceed? Or is this still unresolved?

Regards,
Rickard

[novakm]

Originally Posted by ribe

I would like to merge a tet mesh and a hex mesh, where the tets are inside a hole in the hex mesh; think of it as a smaller cylinder inside a larger one. I thought stitchMesh could be used for this kind of operation.

To get familiar with stitchMesh I first created a small test problem: a cube where I made one quarter tets and the rest hex; see attached image. I created one patch for the interface for each mesh type, exported one tet mesh and one hex mesh, run mergeMesh without problems and then tried stitchMesh.

Here, however, I run into a problem along the edge. Searching the forum this was discussed long time ago without any clear solution. I tried some alternatives without success, like creating two separate interfaces and merge them one after the other.

Any suggestions on how to proceed? Or is this still unresolved?

Regards,
Rickard

Hi,

did you made any progress on this topic?
I'd like to handle geometry similar to yours.

[ribe]

Nope, unfortunately. Tried different ways by changing ordering, merging patches etc. but it seems the corner edges is still an unresolved issue.

/Rickard