Details of the Turbulence Model

[sofenkumarjena]

Hi users,
Code Saturne has a k-epsilon and k-epsilon linear model. Not full description about the same is given in the theory guide.
If I do not select any wall function, are both model solving low Reynolds number version. What kind of damping functions are used in the viscous sub-layer.

Kindly inform details about these models

Thanks and Regards
Sofen

[Yvan Fournier]

Hello,

I'd prefer for people who know the turbulence models better than me answer this, but I do not think damping functions are used automatically for those high-Reynolds models, which do not use a "volume" Y+ (or equivalent) field which even allows damping values based on y+.

So to my knowlege, these are high-Reynolds models with no damping function. For low-Reynolds models see the "All-Y+" k-omega options, Rij-EBRSn or k-epsilon Launder-Sharma for example.

Best regards,

Yvan