template<class BasicTurbulenceModel>
fluidSmagorinsky class
The Smagorinsky SGS model.
Reference:
Smagorinsky, J. (1963).
General circulation experiments with the primitive equations: I.
The basic experiment*.
Monthly weather review, 91(3), 99-164.
The form of the Smagorinsky model implemented is obtained from the k-equation model assuming local equilibrium which provides estimates of both k and epsilon separate from the sub-grid scale viscosity:
B = 2/3*k*I - 2*nuSgs*dev(D)
where
D = symm(grad(U));
k from D:B + Ce*k^3/2/delta = 0
nuSgs = Ck*sqrt(k)*delta
The default model coefficients are
SmagorinskyCoeffs
{
Ck 0.094;
Ce 1.048;
}