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-   -   [ICEM] Dissociate blocks number of nodes (https://www.cfd-online.com/Forums/ansys-meshing/97411-dissociate-blocks-number-nodes.html)

gi12 February 16, 2012 10:53

Dissociate blocks number of nodes
 
Hi all,
Suppose we have a Y shape geometry. We get three blocks to hexa meshing this geometry. The upper part of the Y shape would get two blocks one each branch; the number of nodes in each block are equal. If we change the number of nodes at any edge both block nodes number will change.
My question is that I need fewer number of nodes in one of the two blocks and keep the other block nodes constant. I know that Refine block option allows me to add extra nodes
Any help would be very mush appreciated
Kind Regards
GI

lnastalek February 22, 2012 10:41

If I may, I would like to add to this post.

I am struggling with an issue that restricts me from changing node distributions freely. I have a "cake slice" of a valve, and this valve possesses a strainer. The strainer holes are to be modelled. The problem is when it comes to meshing the triangular shape resulting from the slice. In gambit I would have used the tri-primitive scheme, and then sweep it downwards. Here I do a sort of Y Block. But. When I try to change the number of nodes on the Y branches, so that the side walls remain periodic (evenly distributed), this alters an even distribution of nodes on other edges back at the strainer. I will upload a picture for a better view, given some time.

I hope both questions receive answers.

rikio February 23, 2012 23:33

Change the node number on one edge of one of the Y block would result in a change to another block. But next edge which intersecting with the previous mentioned one would not. You can add/decrease the number to work out a specific mesh resolution.


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