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divergency of combustion calcualtion

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Old   December 17, 2000, 13:47
Default divergency of combustion calcualtion
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hong
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The question is : when the simulation of combustion is calculated, because there are several outlets . convergence is very difficult.who can give me some hint.
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Old   December 20, 2000, 05:26
Default Re: divergency of combustion calcualtion
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Ahmed Hassaneen
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Hong, We need more details to try to help you.
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Old   December 20, 2000, 06:52
Default Re: divergency of combustion calcualtion
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hong
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Thanks. The furnace has several outlet in difference position. The outlet mass flux can be know. The fuel is air. when the calculation is doing, the warning messages have two type as following: 1, *** WARNING #007 *** SETTING T AT CELL 18157 FROM -4.076E+00 TO 0.01*TREF FOR DENSITY CALCULATION

2. *** WARNING #066 *** TEMPERATURE LESS THAN MIN. RANGE TEMPERATURE AT 1 CELLS.

MINIMUM TEMPERATURE OF -.120E+04 AT CELL 19262

what is best method to debug it.

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