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-   -   [ICEM] icem rotation for thin edges (https://www.cfd-online.com/Forums/ansys-meshing/140467-icem-rotation-thin-edges.html)

ruben3031 August 15, 2014 12:07

icem rotation for thin edges
 
3 Attachment(s)
Hey guys,

I'm trying to rotate a thin round edge about the x-axis for 90 deg to convert a 2d drawing into a 3d. Whenever I use a thick surface, rotation happens with no prob and the mesh is perfectAttachment 33058. The issue arises with the thin surface and the mesh is just not rightAttachment 33059Attachment 33060. Please take a look at the pictures and any suggestions to fix the issues are the most welcome.

Cheers

Ruben

Far August 15, 2014 14:39

For thin edge (i am sure you are talking about zero thickness), just close the region and you are done

Far August 15, 2014 15:22

1 Attachment(s)
Like this

http://www.cfd-online.com/Forums/att...1&d=1408126939

ruben3031 August 15, 2014 15:40

Hi Sijal,

Thank you for your suggestion. I meant that when I'm using a thickness of 2cm or above, I'm able to obtain the correct mesh. But when I'm using a thickness of less than 2 cm, I'm having the issues that I showed in the pics. For my work, a thickness of 0.4 cm is required as it consists of the solid material. I did close the region but I'm still having those issues.

Far August 15, 2014 15:59

what problem you are getting?

Try to increase the no of nodes and also trying to reduce the triangulations tolerance from 0.001 to 0.0001 or even lower value

ruben3031 August 15, 2014 16:33

2 Attachment(s)
I've posted 2 pics online, one with a thickness of 2cm Attachment 33065 and one with a thickness of 1cm Attachment 33066. Even though I change the toleance level as you can see, the meshing for the 1cm thickness is messed up.

ruben3031 August 15, 2014 17:05

1 Attachment(s)
Hi mate,

THx for your help. I did figure it out. The rotation with very thin edges of less than 1 cm needs to be at a smaller angle say 10 deg. Then increasing the number of copies to the desired angle of rotation should do the trick. I've posted a pic with a thickness of 1cm as shown and incresed the number of copies to 36 to create a 360 angle of rotation.Attachment 33067

Far August 15, 2014 17:45

good work ...


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