The influence of the lift force on particle deposition in turbulent flows

被引：0
|
作者：
Sikovsky, D. Ph [1 ,2 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Inst Thermophys, Acad Lavrentyev Ave 1, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
来源：
PROCEEDINGS OF THE EIGHTH INTERNATIONAL SYMPOSIUM ON TURBULENCE HEAT AND MASS TRANSFER (THMT-15) | 2015年
关键词：
D O I：
10.1615/ICHMT.2015.THMT-15.1180
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
We have studied the influence of the lift force on particle deposition in turbulent wall-bounded flows using the near-wall asymptotic solution of the kinetic equation for the particle PDF. This influence is significant since the wall-normal lift force decays linearly with the distance to the wall exceeding greatly the quadratically decaying wall-normal drag force. We derive the power-law dependence of the deposition velocity from Stokes number in the diffusion-impaction regime, which is in good agreement with experimental data. We have shown the crucial role of wall correction to the expressions for the drag and lift force for a correct prediction of particle deposition rate in the diffusion-impaction regime.
引用
收藏
页码：551 / 554
页数：4
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