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Scalable Wall Function in OpenFOAM?

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Old   July 21, 2016, 04:29
Default Scalable Wall Function in OpenFOAM?
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wuyu
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I am simulating a turbine blade problem and the y plus value of the first layer (after running quite a while) becomes 9~323. I do not want to coarsen the near wall mesh with the consideration of resolving the near-blade region. So I plan to use kOmegaSST model and scalable wall function?

But I cannot figure out which wall function to be used as scalable wall function.The conventional kqRwallfunction or kLowReWallFunction for k?
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Old   October 12, 2016, 09:19
Default Scalable wall function
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Timo Kulju
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Hello,

Actually there isn't this feature in OpenFOAM. I modified for k-epsilon simulations the epsilonWallFunction BC to account this, by expressing epsilon and G with the aid of limited yPlus. The modified wall function works really good, at least it's stable and gives good convergence. Maybe you could do the same with omega?

- Timo
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