k-omega SST near wall inlet condition -- CFD Online Discussion Forums

May 21, 2024, 16:43	k-omega SST near wall inlet condition	#1
TomWaits Member Tom Waits Join Date: Aug 2018 Posts: 42 Rep Power: 8	In OpenFoam, the inlet boundary condition for k-omega-SST is: turbulentMixingLengthFrequencyInlet which sets $\omega=k^{0.5}/(C_\mu^{0.25}L)$ with $k=3/2(I U_{ref})^2$ but on the NASA webpage (https://turbmodels.larc.nasa.gov/sst.html) the BC's for k-omega SST should be: $U_\infty / L < \omega_{farfield} < 10 U_\infty / L$ and $10^{-5}U_\infty^2/Re_L < k_{farfield} < 0.1U_\infty^2/Re_L$ Why does this discrepancy exist? Does the inlet boundary condition in openfoam assume wall modelled k-omega SST? Does the inlet boundary condition still work for a grid with y+~1? Many thanks for your help

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