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First Symposium on Turbulence and Shear Flow Phenomena
September, 12-15, 1999, Doubletree Resort, Santa Barbara, California, USA

DOI: 10.1615/TSFP1

MODELING SCALAR MIXING PROCESS IN TURBULENT FLOW

pages 1357-1362
DOI: 10.1615/TSFP1.2180
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Краткое описание

The paper accounts for the work in progress: it addresses some issues concerning scalar mixing models to be implemented in the probability density function (PDF) computation of turbulent flow. Basic notions are briefly recalled; a heuristic model that simulates both the effect of turbulent mixing and molecular diffusion in the physical space is presented. A particle model is then proposed that describes an evolution of scalar variable in its sampling space (in the context of the PDF method). The model satisfies a selection of constraints imposed on the general physical modeling.

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