Subgrid-scale modeling of velocity and passive scalar for the large-eddy simulation of non-homogeneous turbulent flows

Abstract

Subgrid-scale modeling that relies on the separation between the mean and the fluctuating part of a turbulent field is introduced in the context of large-eddy simulations of non-homogeneous turbulent flows. Subgrid-scale models are proposed explicitly for both the velocity and passive scalar fields. Performances are examined, and comparisons are made with the classic and dynamic Smagorinsky models for the simulation of a temporal turbulent jet.