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RNG ke - natural convection

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Old   September 6, 2012, 14:54
Default RNG ke - natural convection
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sagila
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Dear all,
I am using RNG k-epsilon model for natural convection. I increase the gravitational acceleration (g) gradually. Until g = -4 m/s2, by changing under-relaxation factors it converges. But, although I am using the same procedure as the previous gs, it does not converge at g = -4 m/s2.
I would appreciate if anyone could give me advice.
Thank you.
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