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June 29, 2007, 09:03 |
Hi,
This may be a silly que
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#1 |
Senior Member
Pei-Ying Hsieh
Join Date: Mar 2009
Posts: 317
Rep Power: 18 |
Hi,
This may be a silly question, but, I cannot help it not to ask. For a domain, say a rectangular box. Initially, filled with air. On the top surface, there is an inlet. Water flows into the domain from the inlet. On the top surface, it is atmosphere (except for the inlet face). It has been said many times that hex elements are superior than tet elements. But, how much better? can someone give a somewhat quantitative comparison - specific to interFoam solver. Thanks! pei |
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June 29, 2007, 13:45 |
There can be so much more bad
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#2 |
Member
Rolando Maier
Join Date: Mar 2009
Posts: 89
Rep Power: 17 |
There can be so much more bad in a mesh than the cell shapes. I made pretty good experience with tet meshes. The only thing you should really care about, is not to use tet cells near a wall. There you should use hex or prism cells.
Rolando |
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June 29, 2007, 14:17 |
Hex meshes are well known to r
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#3 |
Senior Member
Srinath Madhavan (a.k.a pUl|)
Join Date: Mar 2009
Location: Edmonton, AB, Canada
Posts: 703
Rep Power: 21 |
Hex meshes are well known to resolve boundary layers more accurately. Only if the geometry cannot simply be meshed using hex elements, resort to tet elements.
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