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June 22, 2012, 15:50 |
how to make good Mesh
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#1 |
Senior Member
A_R
Join Date: Jun 2009
Posts: 122
Rep Power: 16 |
Dear CFD man
My question is " what feature does a good mesh have?" how can we check that is a mesh good or not? |
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June 24, 2012, 12:37 |
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#2 |
New Member
Join Date: Jun 2012
Posts: 2
Rep Power: 0 |
it depends on your problem. i.e. we can use multi-grid for some problem or not. although we must notice to time scale and space scale ... . finally it's refer on your experience about problems.
Last edited by bi.bi; June 24, 2012 at 13:22. |
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June 24, 2012, 20:56 |
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#3 |
New Member
sepideh
Join Date: Jul 2011
Posts: 21
Rep Power: 14 |
Hi
I have a rectangular box,(450*900*225mm) and a slot (extrude with imprint faces) at the top of the box (450*225mm) that is 10mm at the middle of the box so the centrelin eof the box is at 225mm in x direction.I used multizone mesh with different mesh sizes of 8,7,6,..3mm but in all cases when I look at my data in post CFX,the slot size has been moved about 4mm from the centreline,and I think the problem is with multizone mesh method I can compensate for half elements or any decimal number of elements,scince I need an exact value of variables in CFX post this movment make my results antisymmetric. I would appreaciate if anybosy knows how to make the mesh process better. Regards, Sepi |
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