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What can I do if the residual increases

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Old   August 18, 2007, 09:37
Default What can I do if the residual increases
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Hi I am tried to simulate steady state, two phase flow I used the VOF model I have a problem when the iteration start the residual of continuity increses untill it became 1+e4 (10000) and it still fixed at this value and the results not converage anymore what should i do to solve this problem?

Thanks for any help trb
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Old   August 19, 2007, 17:04
Default Re: What can I do if the residual increases
Farshid Owrang
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Try with these:

1. decrease the flow rate or 2. decrease Under-Relaxation Factors and 3. Begin with the "First Order" with Coupled P-V Coupling till only QUICK Discretization.
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