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-   -   [ICEM] Solid mesh with no prism layers (https://www.cfd-online.com/Forums/ansys-meshing/140046-solid-mesh-no-prism-layers.html)

Roberto Meloni August 6, 2014 16:19

Solid mesh with no prism layers
 
1 Attachment(s)
Hi.
I'm meshing a complex geometry of a gas turbine combustor using ICEM. The mesh is composed by both the fluid and the solid parts.

I made the tetra mesh for the entire model (fluid and solid) but when I go to build the prism layers the latter are added also at the solid mesh (see the simplified figure in attach).
I defined the parameters of the prism layer at the surface that is the interface between the solid and fluid region, but I want that the solid wall doesn't contain the prism layers!!!
How can I fix this issue?

thank you in advance for your time and consideration.
Best regards.

kad August 7, 2014 07:55

In the menu for selecting prism parts activate the volume part "fluid" as well. Check the ICEM manual for "compute prism mesh".

Roberto Meloni August 8, 2014 02:42

Hi...and thank you very much for your rep
ly.
So, Have I to check both surface and fluid volume? It seems quite redundant!
All the best.
Roberto

clarkent August 8, 2014 07:47

You must put the check mark also to the part name of the volume mesh of the fluid side, and solid side must be unchecked. Marking none of the volumes will result in prisms in all of the volume parts that is adjacent to the marked surface.

Roberto Meloni August 8, 2014 11:37

Thank you guys for your help.
Unfortunately, the problem is not solved yet.

Firstly, I create a tetra mesh, obtaining different domains (two solid walls and three fluid domains).
Now, I want to create the prism layers at the wall. When I'am going to create the prism layers, have I to click on "Replace" or "Merge"?

If I click on merge other domains overlap the previous ones.

Do you suggest to create simultaneously the tetra and the prism layers?

Mazze[ITA] September 10, 2014 11:42

Quote:

Originally Posted by clarkent (Post 505022)
You must put the check mark also to the part name of the volume mesh of the fluid side, and solid side must be unchecked. Marking none of the volumes will result in prisms in all of the volume parts that is adjacent to the marked surface.

I have made a quick test and it does not work also in my case... The prisms are generated in both directions.

clarkent September 11, 2014 08:55

Quote:

Originally Posted by Mazze[ITA] (Post 509874)
I have made a quick test and it does not work also in my case... The prisms are generated in both directions.

Could you post your part mesh setup?

Mazze[ITA] September 11, 2014 09:38

1 Attachment(s)
Quote:

Originally Posted by clarkent (Post 509974)
Could you post your part mesh setup?

Actually now it works! A colleague of mine had created two bodies with the same name for the two solid volumes, but giving different names it has been fixed.


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