Pair dispersion and preferential concentration of particles in isotropic turbulence

被引：132

作者：

Zaichik, LI ^{[1
]}

Alipchenkov, VM ^{[1
]}

机构：

[1] Russian Acad Sci, Inst High Temp, Moscow 111250, Russia

来源：

PHYSICS OF FLUIDS | 2003年 / 15卷 / 06期

关键词：

D O I：

10.1063/1.1569485

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The objective of the paper is to present a statistical model for predicting pair dispersion and preferential concentration of particles suspended in an isotropic homogeneous turbulent flow field. This model is based on a kinetic equation for the probability density function of the relative velocities of two particles. The model developed is applied to predict the pair relative velocity statistics and the accumulation effect of heavy particles in a steady-state suspension. The effect of particle inertia on the predicted Eulerian two-point particle velocity correlations is demonstrated and compared with known results of numerical simulation. (C) 2003 American Institute of Physics.

引用

页码：1776 / 1787

页数：12

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