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WARNING #090

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Old   May 2, 2007, 22:51
Default WARNING #090
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SKC
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Hi every one, I`m running a buoyancy problem with high Re k-Epsilon model. I`m getting the warning "WARING #090 *** VALUE ELOG*YPLUS OR ELOG *EFFVIS/(CAPPA*VISCOS) IS LESS THAN 1.1 AT 9806 CELLS.UPLUS=YPLUS LAW IS USED. IF THIS SITUATION PERSISTS,INCORRECT RESULT MAY BE OBTAINED" for my first iteration and the numbe r of cells decreases gradually and varies between 8 and 16. The results are converging with the residual tolerance of 10E-4. Do you think the results are valid ??? Any help is greatly appreciated.

Thanks, -SKC
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Old   May 3, 2007, 06:10
Default Re: WARNING #090
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Klaas Klever
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You should check where your areas of poor y+ values are. Are they in critical regions of the domain? I would think that 16 cells aren't too bad and that you can live the results.
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Old   May 18, 2007, 02:06
Default Re: Error#076#
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Ravi
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How to overcome this type of error it shows the message: Negative density found more than 100 cells
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Old   May 21, 2007, 04:20
Default Re: Error#076#
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Sanjay
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You need to chekc on BC's and also try to reduce your under-relaxtion parameters to get a good convergence.
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