Computational turbulent stress closure for large-eddy simulation of compressible flow

This paper studies the computation of stress tensors for turbulent compressible flow for purposes of subgrid modeling for LES (large eddy simulation) methods in an effort to provide a model closure. The method uses and compares a variety of filters and special decomposition methods on the velocity field and the density. The studies are done over a range of Mach numbers. The subgrid models for the velocity range from Smagorinsky type models to Leray-models, while approximate deconvolution methods are used for the density. Problems such as shocks in a developing turbulent flow are left for future research.