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Mesh Independent Study

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Old   May 1, 2015, 08:30
Default Mesh Independent Study
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Hi guys,

I am doing the mesh independent study. I have created four different meshes:
- coarse (about 10000 cells)
- fine1 (about 40000 cells)
- fine2 (about 160000 cells)
- fine3 (about 640000 cells)
After calculation I did the plots of velocity at the outlet section and along perpendicular lines to outlet section. I attached them. And my question is why accordance with 'outlet' the best matched are fine1 and coarse, while according to 'perp_outlet' the best matched are fine1 and fine2. The theoretically the best match should show fine2 & fine3. What causes this incompatibility?
Attached Images
File Type: jpg outlet.jpg (36.3 KB, 8 views)
File Type: jpg perp_outlet.jpg (34.8 KB, 8 views)
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