CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Two differents mesh scheme at the same edge (http://www.cfd-online.com/Forums/fluent/50764-two-differents-mesh-scheme-same-edge.html)

William March 4, 2009 11:27

Two differents mesh scheme at the same edge
 
Hi,

I'm using gambit to generate mesh on a plate with 4 hole and I want only to refine the mesh inside the 4 holes. I tried everything you can imaging without succeed.....Can someone help me.

Thanks,

Laci March 4, 2009 11:40

Re: Two differents mesh scheme at the same edge
 
What if, you generate the mesh how you can, than in the Fluent you adapt the grid?!

William March 4, 2009 12:43

Re: Two differents mesh scheme at the same edge
 
Thanks for the quick reply....

I tried to generate the mesh in gambit but it doesn't work. I got the message error below: Cannot submap face 2. Furhter decomposition may help. Also check interval assigments for correctness.

Laci March 4, 2009 14:36

Re: Two differents mesh scheme at the same edge
 
I had the same problem (cannot submap face x), when the face was too small, several order of magnitude lower compare to the other faces...

kuba March 4, 2009 15:03

Re: Two differents mesh scheme at the same edge
 
And did you tried set the interface in gambit and then join them in fluent??

William March 4, 2009 15:43

Re: Two differents mesh scheme at the same edge
 
In fact, that exactly my problem. How did you solve it?

Thanks,

William March 4, 2009 15:48

Re: Two differents mesh scheme at the same edge
 
I was thinking to do it. However I have two big cylinder joined by 50 small cylinder.... thus I'll need 100 interfaces ???

Thanks,

Laci March 5, 2009 04:10

Re: Two differents mesh scheme at the same edge
 
Until this time I could neglect these small shapes.

Ganapathy Iyer March 6, 2009 13:54

Re: Two differents mesh scheme at the same edge
 
Lets solve toe original problem. A plate with 4 holes. Fine mesh in the holes, coarse mesh everywhere around. 1. Create a fine mesh on the edge of the holes. 2. Create a Quad Pave mesh on the 4 holes using a fine factor. 3. Create a sizing function with the edge as source and the remaining plate as the target. The ratio should be 1.1 or 1.2 (not more than 1.2)and set the max size that you want. 4. Now pave mesh the plate by uncheching the mesh size option. You will get a mesh which gradually coarsens from the fine mesh on the 4 hole.


William March 6, 2009 15:25

Re: Two differents mesh scheme at the same edge
 
Thanks a lot for the advices...I'm going to try it


All times are GMT -4. The time now is 17:33.