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Grid dependency regarding the turbulence model

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Old   September 20, 2016, 11:31
Question Grid dependency regarding the turbulence model
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Hey guys. I want to perform series of mesh independence check. The problem is I don't how to begin. Assume I want to obtain the pressure coefficient on an airfoil.

1)
Shall I first ignore clustering/stretching on Leading edge and trailing edge? I can't figure out how to perform clustering and doing a mesh independence check. Regarding a certain turbulence model shall I do the clustering till I reach the limits for yplus of a certain turbulence model? (e.g. first: k-epsilon with standard wall function, second: enhanced wall function)

What should I do with the rest of the domain? Need I check grid dependency for other areas? (e.g. near the inlet and outlet of the domain)

2)What can I do to lower the mass imbalances? (They are about 3-5 not less than 1 % )
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Old   September 21, 2016, 12:40
Default No answer?
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Anybody? I'm sort of desperate!!!!
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Old   September 25, 2016, 06:38
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Someone please help!!!!! :|
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