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[ICEM] Multiple edges problem when merging hexa/tetra mesh

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Old   May 30, 2013, 20:26
Default Multiple edges problem when merging hexa/tetra mesh
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Andrew Kang
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Hi, I've been learning how to merge tetra/hexa mesh together
and now I know how to do it for an example in the tutorial.

I'm trying another simple but a bit different example trying to merge
tetra/hexa mesh.

As you can see from file below, I'm merging different sized boxes each with tetra and hexa meshes, and followed the procedure given in the tutorial.

Here's project file link right before merging the volumes.
http://www.2shared.com/file/JC9xFOfh/test.html


At frist, it seems to be working, but when I check the mesh,
I found 'multiple edges around the interface and I want to eliminate
all the multiple edges.

If any of you know how to tackle this problem, please let me know..
I'll really appreciate it..
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Old   May 30, 2013, 22:20
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Ghazlani M. Ali
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an expert once said:

Quote:
Multiple edges are simply edges with more than 2 surface elements connected. In this case, you have the side walls and the interface elements. This is listed under "possible problems" and not "errors". Your solver probably won't mind the multiple edges at all. However, if you want flow to pass thru the interface between the hexas and tetras you have two choices... Either set up the interface correctly in the solver to allow that to happen (this varies with the solver), or just delete the shells in the interface part before you export to the solver.
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New to ICEM CFD, try this document --> http://goo.gl/G2gkE
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Old   May 30, 2013, 22:56
Default I've read that already.
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Andrew Kang
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Thanks!
I've figured out the solution to my problem.

Last edited by earth07; May 31, 2013 at 01:32.
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Old   May 31, 2013, 03:29
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Javi
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Hi guys,

If I want to do this "...or just delete the shells in the interface part before you export to the solver"... how can I do it? Is that I have not very clear.... Thank you guys!
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