Abstract
A statistical model for the continuum description of inertial-particle transport and dispersion in anisotropic turbulent shear flows is presented. The model is based on a kinetic equation for the particle velocity probability density function. The model differs from previous kinetic models by taking the anisotropy of the Lagrangian autocorrelation functions and the turbulence time scales into account. The model developed is used for calculating the dispersed-phase velocity fluctuations in a uniform shear flow. The results obtained are compared with the existing direct numerical simulation (DNS) data.
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Translated from Izvestiya Rossiiskoi Academii Nauk, Mekhanika Zhidkosti i Gaza, No. 5, 2004, pp. 69–83. Original Russian Text Copyright © 2004 by Alipchenkov and Zaichik.
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Alipchenkov, V.M., Zaichik, L.I. Statistical model of particle motion and dispersion in an anisotropic turbulent flow. Fluid Dyn 39, 735–747 (2004). https://doi.org/10.1007/s10697-005-0007-6
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DOI: https://doi.org/10.1007/s10697-005-0007-6