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y plus for Realizable k-e

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Old   August 22, 2022, 10:48
Default y plus for Realizable k-e
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Alexander Yurishchev
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Hi all,

I am a bit confused. Is it ok to use 30<y+<300 for modeling with the Realizable k-e model? Or should I locate the first layer is viscous region (y+<5)?

Thanks all,
A.
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Old   September 15, 2022, 06:58
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30<y+<300
this is the range for high-RE turbulence models,

if you want to resolve y+<30 you should use a low-RE turbulence model.

Realizable k-eps. is a high-RE model.

choose your wall function accordingly.
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