Advanced Modeling of High Speed Turbulent Reacting Flows

摘要

This paper provides a brief overview of the compressible scalar filtered mass density function (FMDF) model and its application to high speed turbulent combustion. The FMDF is a subgrid-scale probability density function model for large eddy simulation (LES) of turbulent combustion and is obtained by the solution of a set of stochastic differential equations with a Lagrangian Monte Carlo method. The applicability and the validity of the LES/FMDF are established by simulating various high speed reacting and non-reacting flows. The LES/FMDF results are found to be consistent and comparable to experimental and numerical (DNS) data in different flows.