LES of Turbulent Channel Flow using Dynamic SGS Model

Abstract

In order to clarify turbulent flows precisely, we develop an LES code and verify it through a simple channel flow simulation. We use a dynamic SGS model as a eddy viscosity model, which is one of the promising models in the engineering turbulece studies. The numerical scheme is based on a finite difference method. Computational results are compared with the experiment data and thus the present method can evalaute the turbulence properties well. We think that the present method can be applied to simulate flows around drag reduction devices such as LEBU (Large Eddy Break-up Device).