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Standard K-epsilon turbulence model with y~+1

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Old   June 10, 2019, 13:12
Default Standard K-epsilon turbulence model with y~+1
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Evren Linda
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I have a 2D mesh with y^+ = 1 of a computational domain around a cylinder with [inlet, outlet, top, bottom, cylinder].
I want to start two simulations: using the k-\omega SST and the standard k-\varepsilon turbulence models without changing the mesh.

As far as I know, for the k-\omega SST, the mesh is ok because y+ = 1. But for the k-\varepsilon model, it requires wall functions.

Can I use a mesh that has y+ = 1 with the standard k-\varepsilon model? if Yes which wall functions should I use at the wall (cylinder) for k (turbulent kinetic energy), and \varepsilon (turbulent dissipation)?
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Old   June 15, 2019, 18:19
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The standard k-epsilon turbulence model cannot be used with Low-Re formulation. However you can use a Low-Re implementation, LaunderSharmaKE (it uses damping functions)
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