ELECTROHYDRODYNAMIC DISPERSION OF DEFORMABLE AEROSOLS IN THE PRESENCE OF AN ELECTRIC FIELD AND CHEMICAL REACTION USING TAYLOR DISPERSION MODEL  

作　　者：RUDRAIAH N. DEVARAJU N. NG Chiu-On 

机构地区：[1]UGC-CAS in Fluid Mechanics, Department of Mathematics, Bangalore University, Bangalore-560 001, India National Research Institute for Applied Mathematics (NRIAM), Bangalore-560 070, India [2]Department of Mechanical Engineering, The University of Hong Kong

出　　处：《Journal of Hydrodynamics》2011年第2期247-257,共11页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the Department of Science of Technology of India (Grant No. SR/S4-AS-237/2004-05);the Research Grants Council of the Hong Kong Special Administrative Region, China, (Grant Nos. HKU 715609E, HKU 715510E);supported by the University of Hong Kong through the Seed Funding Programme for Basic Research (Grant No. 200911159024)

摘　　要：Under the effects of electric field and chemical reaction, the problem of dispersion of aerosols in a poorly conducting fluid in a channel is solved analytically using the mixture theory together with a regular perturbation technique. It is shown that the aerosols are dispersed relative to a plane moving with the mean speed of atmospheric fluid as well as the mean speed of agglomeration of aerosol with a relative diffusion coefficient, called the Taylor dispersion coefficient. This coefficient is numerically computed and the results reveal that it increases with an increase in the electric number, but decreases with increasing porous parameter. The physical explanations for the phenomena are given in this article.Under the effects of electric field and chemical reaction, the problem of dispersion of aerosols in a poorly conducting fluid in a channel is solved analytically using the mixture theory together with a regular perturbation technique. It is shown that the aerosols are dispersed relative to a plane moving with the mean speed of atmospheric fluid as well as the mean speed of agglomeration of aerosol with a relative diffusion coefficient, called the Taylor dispersion coefficient. This coefficient is numerically computed and the results reveal that it increases with an increase in the electric number, but decreases with increasing porous parameter. The physical explanations for the phenomena are given in this article.

关 键 词：DISPERSION AEROSOLS ELECTROHYDRODYNAMICS mixture theory 

分 类 号：O361.4[理学—流体力学] O643.1[理学—力学]