Numerical analysis for the thermophoretic coagulation of monodisperse particles at continuum regime

被引:2
作者
Jung, Haesung [1 ]
Lee, Sun Young [2 ]
Kim, Jung Hyeun [1 ]
机构
[1] Univ Seoul, Dept Chem Engn, Seoul 130743, South Korea
[2] Korea Forest Res Inst, Div Environm Mat Engn, Funct Mat Lab, Seoul 130712, South Korea
关键词
Thermophoresis; Coagulation; FDM; Continuum regime; Particle interaction; Monodisperse particle; PROTECTION;
D O I
10.1016/j.jcis.2010.05.075
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Coagulation is a process wherein aerosol particles collide with one another and adhere to form large particles in the system due to their relative motions. In this letter, we investigated thermophoretic coagulation of monodisperse aerosols on a constant temperature gradient between particles and gas molecules using a FDM (finite difference method) technique. The basic concept is to focus on a single particle attracting other particles considering their diffusional and thermophoretic motions to its collision surface. From the results of simulated particle flux, it shows that the thermophoretic coagulation is more effective for higher temperature gradient in the monodisperse aerosol particles. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码:438 / 441
页数:4
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