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Old   April 19, 2014, 05:14
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arthur
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i did my meshing in gambit(3d circular jet with a v notch at the nozzle exit ) but my case is diverging in fluent..esp divergence in amg solver temp,.By checking the case set up i found that skewness exceeded 0.98 at 1 cell on thread ID=5. how can i fix my issue ?
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Old   April 28, 2014, 01:40
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Maxime Perelli
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you have bad quality cells which may cause divergence
I would fix skewness problem (go back in Gambit)
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Old   April 28, 2014, 12:07
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thanx max.But how can i fix skewness prob in gambit.Do i need to change the interval count or size or anything else ? am doing on v toch ( at exit ) and i am able to mesh only t grid at that volume.Does t grid has any influence on skewness or divergence ?
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Old   April 29, 2014, 02:59
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you need to find the reason of your skewness
Typically it is linked to a topology issue (sharp angle etc...)
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