What Is the Smagorinsky Subgrid Scale Model?

The Smagorinsky subgrid scale model uses a mixing length hypothesis to model the subgrid scale stresses. This is the simplest, and hence the least computationally expensive, subgrid scale modeling approach. It suffers from the limitation that the model coefficient is not truly universal.

Expert Properties

Unless you are thoroughly familiar with the theoretical aspects of this model and the discretization techniques used in STAR-CCM+, we recommend that you not make any changes within the Expert category. The values in that category reflect both the model's design and discretization approaches that have been optimized for accuracy and performance. Tampering with them may diminish the effectiveness of the model.

Cs	The coefficient , Eqn. 140.
Ct	The coefficient , Eqn. 142.
Kappa	The von Karman constant , Eqn. 141.