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Converged solution with residuum oscilation icoFoam

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Old   May 7, 2014, 05:37
Question Converged solution with residuum oscilation icoFoam
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Duarte Magalh„es
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Hi everyone,

I am using icoFoam to simulate a laminar flow inside a cylindrical duct, and although my solution is converged, the residuum oscillate and I think I have a problem there.

Here are my residuum results:

I know that for explicit algorithms, this problem would be solved by reducing the under-relaxation factors, but in implicit algorithms i don't know how to solve it.
My fvSchemes file is the default used by icoFoam. I am also limiting the Courant number to 0.3

If anyone could help me on this i would much appreciate!

Thanks in advance!
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