Abstract
A one-equation subgrid scale model is improved for the large eddy simulation of turbulent flows. It combines advantages of the one-equation dynamic model by Kajishima and coherent structure model by Kobayashi. The proposed model has been applied to low a Mach number turbulent flow around a two-dimensional airfoil with 9 degree angle of attack in a uniform stream. Computational results of the new model show almost the same and reasonable performance as the one-equation dynamic model with the significant computational cost reduction.
