Краткое описание

The main aim of the present work is to develop a anisotropic one equation model based on the subgrid scale (SGS) kinetic energy for the large eddy simulation (LES) and test on a fully developed channel flow with constant spanwise rotation. The present model considers an anisotropic eddy viscosity formulation. The production term is then computed using the local coefficient by using dynamic procedure without any averaging restrictions or clipping. For the prediction of the correct asymptotic behavior near wall an additional modification to the dissipation term is introduced following the RANS low Reynolds number modeling. The proposed model is first tested on fully developed channel flow and compared with some existing models results. Second, efficiency of this model has been demonstrated by the prediction of re-laminarization of grid scale (GS) turbulence on the suction side of the spanwise rotating channel flow.