Computational Approaches to the Study of Reactive Flow Mixing.
NAVAL RESEARCH LAB WASHINGTON DC
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The presence of turbulence alters mixing and reaction times in chemically reactive flows. These effects in turn modify the heat and mass transfer rates and hence the local and global dynamics of combustion systems. The goal of this paper is to first describe the fundamental physical processes we must model to understand reactive flow turbulence and then to show how detailed ab initio modelling of these phenomena may be used to help construct phenomenological turbulence model for reactive flows. Three different aspects of reactive flow mixing are identified as focal points for the detailed modelling and several important criteria are established which an accurate and consistent sub grid reactive flow mixing phenomenology should satisfy. One possible representation for such a generalized phenomenology is presented. Author
- Fluid Mechanics
- Combustion and Ignition