Wray-Agarwal(WA) Turbulence Model
The Wray-Agarwal (WA 2017m) model is a one-equation linear eddy viscosity model that was derived from two-equation closure. It combines the most desirable characteristics of the one-equation model and one-equation model, analogous to the SST model which combines best features of two-equation and models.
WA Model (WA 2017m)
The turbulent eddy viscosity is given by:
The model solves for the variable using the following equation:
and d is the minimum distance to the nearest wall. The model constants are:
Solid smooth wall:
- X. Han, T. J. Wray, and R. K. Agarwal (2017), "Application of a New DES Model Based on Wray-Agarwal Turbulence Model for Simulation of Wall-Bounded Flows with Separation", AIAA Paper 2017-3966, June 2017.