412 Study of the energy dissipation rate based on DNS of Turbulent Premixed Flames

Abstract

We have carried out the modeling based on DNS databases of the fully developed turbulent premixed flames in order to improve combustion models. On the way of development of modeling, the definition of the energy dissipation rate ε, which is very important for whole of modeling, was modified sometimes. The energy dissipation rate ε estimated with each definition showed the different distributions in the flame region. It is a future subject to examine details more to decide the definition of the most suitable and reasonable energy dissipation rate ε to improve the combustion models.