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A problem about partly premixed combustion

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Old   January 7, 2006, 03:44
Default A problem about partly premixed combustion
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Z.P.YAO
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This is a partly premixed combustion model.When I iterate, the fluent shows liks this: Updating solution at time level N... done. iter continuity x-velocity y-velocity k epsilon fmean fvar premixc time/iter

reversed flow in 49 faces on pressure-outlet 4.

Error: divergence detected in AMG solver: x-momentum Error Object: ()

Interrupting... Done.

I want to know what the problem is.Thank you very much!
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Old   January 7, 2006, 10:35
Default Re: A problem about partly premixed combustion
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Q
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somewhere some variable is divided by 0. U should avoid this my decresing the residual.

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Old   January 8, 2006, 01:58
Default Re: A problem about partly premixed combustion
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Z.P.YAO
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thank you for your answer.which variable is wrong or divided by 0?could you say it clearly? I can't find it. thank you very much!
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Old   January 8, 2006, 07:19
Default Re: A problem about partly premixed combustion
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Q
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I can give some ideas first note at which iteration u are getting such a problem then time u iteration just beofre that iterations where u get this problem and then plot the contours of all the solved variables and see where the soleution is reaching negative or 0.

Q
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