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June 13, 2011, 12:48 |
Convergence Problems in a T mixer
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#1 |
Member
Nuno Gomes
Join Date: May 2009
Location: Portugal
Posts: 39
Rep Power: 16 |
Hello All
I am simulating a mixing T reactor. I did the mesh with quadratic prismas, and the injectors(Top of the T) i use triangular primas and a tetrahedric. The skewness looks fine, under 0,85 for the differents case. I am trying a Reynolds number for 75, 150 and 300. I doing, first simulations, with lower order discretizations (standard and 1st) with a constant velocty inlet. After i increase the order for Body(Because presto! dont converge) and Quick. After that i try it with a parabolic velocity inlet UDF equation. For lower schemes its work fine but for higher schemes they converge but the residual ir higher(10e-2) compare to the first case(10e-4). Any one can give clues or hints to resolve my problema....need any more information about my case? Thank for your replys |
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June 14, 2011, 06:10 |
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#2 |
Member
Nuno Gomes
Join Date: May 2009
Location: Portugal
Posts: 39
Rep Power: 16 |
Any one?! Plz...
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