[blyatman]

What is the definition of gamma in the SST k-omega model? I've read through various resources, but none of them seem to reference what this constant in the omega production term actually is.

https://www.cfd-online.com/Wiki/SST_k-omega_model has the variable in the production term, but does not define it below. They define but none of these are used in the equations.

https://en.wikipedia.org/wiki/Menter...ress_Transport: is not defined.

https://www.afs.enea.it/project/nept.../th/node67.htm also has an term, but they only define what is.

https://turbmodels.larc.nasa.gov/sst.html uses , but they only have definitions of .

I had to dig up Menters original 1994 paper, but it didn't really explain it either. Instead, the paper uses 2 sets of constants. They define the set 1 constants to be for the SST-inner, and the set 2 constants to be for the k-epsilon model. The only possible explanation I can think of is that the set 1 constants are used near the wall (where the k-omega model is used), and the set 2 constants are used in the free stream. However, I was under the impression that the SST k-omega model incorporates a blending function that transitions between the 2 regimes, so this explanation doesn't make sense.

Is there something that I'm missing? I just find it very strange that none of these resources fully define the parameters they use.