2-equation model of LES and source code
 

Hi I am testing various turbulence models on shallow water flow. For LES I have done Smagurinsky model and want to develop it. I have heard about 2 equation LES, but I have not any reference about it. Do you know any references about 2-equation LES model or other LES model used for shallow flow (2D)? Also I am searching for a source code for LES. How can I get one of them? Thanks for your help. M.R.Hadian