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Convergence problem

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Old   February 7, 2003, 17:50
Default Convergence problem
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Pravir
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I am having a tube which has one hole(inlet) at the top and 45 holes(pressure outelt) in the bottom. The model doesnt seem to converge. The flow is laminar when it enters the inlet. I am using segregated-laminar model. Please tell me what kind of discretization schemes and underrelaxation factors shud I use??

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Old   February 8, 2003, 13:34
Default Re: Convergence problem
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Chris
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If at first, it doesn't converge, use very low under-relaxation factors, say 0.2~0.3, for example. Then gradually up the values as your results begin to converge.
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