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Increasing Iter. number of GAMG in pimpleDyMFoam with GGI

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Old   July 3, 2011, 20:21
Default Increasing Iter. number of GAMG in pimpleDyMFoam with GGI
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Dear all,

I calculate a 3D wind turbine rotor using pimpleDyMFoam with GGI interfaces on OF1.6-ext.
I'm confusing to find that the iteration number of GAMG for pressure solver gradually increases from initially 10 or so to around 250 times even flow had developed to quasi-steady state.
When I stopped the run manually and restarted it, the GAMG solver starts from 10 times or so again.

I'd like to know what kind of errors are included in this situation.
I suspect it's not a GAMG issue but a GGI related issue.
Any comments and suggestions are welcomed.

Best regards,
waku2005
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