[hz283]

Hi All,

Now I had a problem about how to deal with the "interface" or "interior" faces in Openfoam.

The Problem is like this:
I used ICEM to generate the meshes. Since the computational domain is complex and so I divided into the domain into several bodies. I generated the meshes for each body and then merge them together. Since the nodes belonging to the two neighboring bodies are not matched. I used "move nodes" to make them coincide. I tested this method using fluent and it seemed it is OK. But this mesh is read by Openfoam, the error message is like this:

Cannot find metach for first face. cell model: tet first model face 3(1 2 3) mesh face:
4
(
.....
...
...
...
)

I also tried the mesh with the interface nodes not moved by "move nodes" and this error does not appear.

I have tried to get some solutions for this:
1, try to improve the mesh using ICEM ? (using this method means that I should make the nodes on the interface metached from two sides)
2, using AMI to deal with the non-conformal mesh ? I checked the tutorials (http://www.openfoam.org/version2.1.0/ami.php) for AMI, but I found there is always another file about topoSet. Is this file particularly for AMI? (using this method means that it is not necessary to make the nodes matched.)

I think the interface or interior face between different bodies or mesh regions are common. But I do not know which method is the best way for Openfoam ? Does anybody know something about this? Any suggestions and comments are
welcome!

best regards,
H