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Stirred tank convergence issue

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Old   January 17, 2014, 00:26
Default Stirred tank convergence issue
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Gurpreet
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hi friends
i am simulating a stirred tank using mrf in ansys 14.0 . i am using SIMPLE presure -velocity and first order discretization scheme, once it partially converge then i switch to QUICK..I am able to converge to 10^-3 but i want it to converge till 10^-4. the problem is that all the errors in residuals goes to 10^-4 exept for 'epsilon'.what should i do.plz help
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Old   January 17, 2014, 05:46
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the convergence graph is something like this

can i say that i converged it to 10^-4 .i did around 9000 iterations
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Old   March 4, 2014, 15:50
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Try to reduce the relaxation factor for turbulent quantities. I hope it can be help you.

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Eakarach
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Old   March 5, 2014, 06:20
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Hi,
it seems converged to me; try to create some monitor surfaces and monitor some variables such as velocity for example; if that variable doesn't change solution is converged.

Daniele
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