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July 7, 2013, 12:54 |
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#21 | |
Senior Member
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
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Quote:
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July 7, 2013, 13:02 |
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#22 |
Senior Member
Nima Samkhaniani
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your mesh has wrong assigned patch, also severely non-orthogonal face, build new mesh
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July 7, 2013, 23:00 |
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#23 |
New Member
Zhengbing
Join Date: Apr 2013
Posts: 20
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July 8, 2013, 00:29 |
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#24 |
Senior Member
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
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your mesh configure is fine, as i said before, you assigned wrong patch as out-flow, you can see each patch by paraview, just click on patch name , and remove other patch name on paraview
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July 8, 2013, 08:05 |
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#25 |
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Zhengbing
Join Date: Apr 2013
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Hi Nimasam,
Thank you. I changed the out-flow patch. And now it can calculate, but some problems still exist, see figures below There is no flow in the area (blue region) around the cylinders (represented by the gray circle). I have double checked the wall boundary, and it's right. So what's wrong with the blue region? In the second figure, large velocity is found at the surface. Note different scale for these two figures. I gave a symmetryPlane boundary for the surface. Why did it cause big value at the surface? If you want, find the case at https://www.dropbox.com/s/vb3ge8jm4t...linders.tar.gz |
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July 9, 2013, 04:47 |
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#26 |
Senior Member
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
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i feel you need to increase cells number in z direction to atleast 4 cells, maybe it solves your problem
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July 9, 2013, 10:22 |
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#27 |
New Member
Zhengbing
Join Date: Apr 2013
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