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Old   August 6, 2009, 09:50
Default Convergence problem
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I am simulating a two-pass channel with ribs. All walls are at contant temperature. At inlet velocity is set as BC while at outlet is pressure.
The mesh size is about 4.5 Million cells. The problem is that I am not getting convergence.
The residuals can be seen in the snap attach..
Please anybody who can tell me what can I do...I canged the relxation fators. The effect of them can be seen in snaps where the values drops promptly.
The convergence level as set to in order of 10-6 for continuity while 10-9 for energy.
As one can see the residuals comes to a constant value which is far from the required value....
Also y+ value was 0.12 at maximum...I used realisable verison of k-epsilon model with wall treatment...
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