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how to mesh a netted block with very small hole inside big block?

Posted 2015年5月23日 GMT-4 18:53 Version 5.0 0 Replies

Seiran Khaledian
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Hi. I am using comsol 5 and It has been 3 days I am trying to mesh a structure with big aspect ratio. I know there has been other discussion in this respect but my structure has differences with others. Simply it is a rectangular channel with a vertical netted surface in center which the flow should be able to go through the small holes of this netted vertical surface. this holes are about 1um*1um and the whole structure is about 1mm*1mm*200um.
when I am trying to mesh the whole structure together I get this error:
Mesh error (ftet1): Failed to generate mesh for domain.
Formed union of 34 solid objects.
Finalized geometry has 34 domains, 204 boundaries, 408 edges, and 272 vertices.
when I try to make subdomain and mesh one after another I still get error. I even tried to built an intermediate block between the small and the big block but still get errors.
is there anyone who can help me in this regard? I really appreciate it.
thanks in advance
0 Replies Last Post 2015年5月23日 GMT-4 18:53
COMSOL Moderator

Hello Seiran Khaledian

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