The Smagorinsky formulation of the eddy viscosity is often selected as a compromise between a constant value and the more sophisticated k Turbulence Model and standard k-e Turbulence Model which are much more time consuming due to the additional equation(s) to be solved at each time step. An attractive alternative to the Smagorinsky formulation is the Mixed 1D k-e, 2D Smagorinsky Turbulence Model.