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Search: Posts Made By: Anna Tian
Forum: CFX May 8, 2013, 10:37
Replies: 26
Views: 6,171
Posted By Anna Tian
Do we still need to care about grid quality?

Do we still need to care about grid quality?
Forum: CFX May 8, 2013, 04:39
Replies: 26
Views: 6,171
Posted By Anna Tian
Question I generate both the hexa grids for the fluid...

I generate both the hexa grids for the fluid domain and tetra grids for the solid domain by ICEM. So I suppose the grid quality button is only for fluid. Then we totally don't care about the grid...
Forum: CFX May 8, 2013, 03:27
Replies: 26
Views: 6,171
Posted By Anna Tian
Question Do I need to do some special treatment for the...

Do I need to do some special treatment for the fluid-solid connection part? Like take care of the expansion ratio (if expansion ratio is still defined at the connection between hexa and tetra)?
Forum: CFX May 8, 2013, 03:13
Replies: 26
Views: 6,171
Posted By Anna Tian
What is the usual mesh quality criteria for the...

What is the usual mesh quality criteria for the solid part?
Forum: CFX May 7, 2013, 15:44
Replies: 26
Views: 6,171
Posted By Anna Tian
Question Thanks. I understand there would be a problem at...

Thanks. I understand there would be a problem at the fluid-solid grids interface.

Another question: tetra grids usually doesn't perform well for the cfd, does it usually work well with FVM for the...
Forum: CFX May 7, 2013, 14:06
Replies: 26
Views: 6,171
Posted By Anna Tian
Because of the geometry complexity. Why would it...

Because of the geometry complexity. Why would it introduce additional errors? I anyway can't avoid GGI for this case. How to treat the separate grid types properly?
Forum: CFX May 7, 2013, 10:46
Replies: 26
Views: 6,171
Posted By Anna Tian
Question Question about solid part of CHT (conjugate heat transfer) in CFX

Hi,

The tetra grids are generated for the solid part of CHT. Hexa grids are generated for the fluid part.

Then when we run the CHT simulation in CFX, will CFX use FVM or FEM to calculate the...
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