A statistical model for the calculation of the frequency of turbulent collisions of particles of arbitrary density

被引:0
|
作者
L. I. Zaichik
V. M. Alipchenkov
机构
[1] Russian Academy of Sciences (IVTAN),Joint Institute of High Temperatures
来源
High Temperature | 2006年 / 44卷
关键词
Reynolds Number; Continuous Medium; Inertial Particle; Turbulent Eddy; Joint Probability Density Function;
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摘要
A statistical model is given for determining the kernel of collisions of inertial particles (droplets, bubbles) in the entire range of variation of the density ratio between the dispersed and continuous phases. The model is based on the assumption that the joint probability density function of velocities of continuous medium and particles is a Gaussian distribution. The ranges of variation of bubble sizes are determined, in which the decisive part is played by the “inertial” and “spatial” collision mechanisms.
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页码:711 / 719
页数:8
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