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Conditional moment closure for turbulent reacting flow

Bilger, R. W.

Physics of fluids. A, Fluid dynamics, 1993-02, Vol.5 (2), p.436-444

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Título:
Conditional moment closure for turbulent reacting flow
Autor: Bilger, R. W.
Assuntos: Exact sciences and technology ; Fluid dynamics ; Fundamental areas of phenomenology (including applications) ; Physics ; Reactive, radiative, or nonequilibrium flows
É parte de: Physics of fluids. A, Fluid dynamics, 1993-02, Vol.5 (2), p.436-444
Descrição: Equations governing the variation through the flow field of averages of quantities such as species mass fractions, conditional on mixture fraction, are derived and modeled. The conditioning variable adds to the independent dimensions of the problem, but it is found that this is offset in some cases by reduction in the spatial dimensionality needed. Predictions are made for the reacting scalar mixing layer, and these show good agreement with experiment. The methodology effectively decouples the kinetics from the large inhomogeneity or macromixing aspects of the flow while preserving the input from the scalar dissipation or micromixing. Arbitrarily complex kinetics may be used within reasonable computational cost.
Editor: Woodbury, NY: American Institute of Physics AIP
Idioma: Inglês

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