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Convergence issue!

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Old   December 21, 2016, 14:55
Default Convergence issue!
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SinaJ
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Hi

I'm having a convergence problem for Steady state (SS) solution in a huge water tank flow simulation. I'm doing realizable k-epsilon (y+ ~50) there is a good residual convergence (like 1e-5 and -6) for all variables. but when I monitor some random points in the flow, I get very fluctuating velocity magnitudes in those points.

Do you have any comment on why this happens and how I can fix this?

(I guess the reason is the fact that there is no solution with local convergence for a high turbulence flow!)
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