A NUMERICAL APPROACH STUDYING THE EFFECTS OF PRECIPITATION SCAVENGING ON STEADY-STATE DISPERSION OF AIR POLLUTANTS
作者机构：Department of Mathematics and Astronomy University of LucknowLucknowUttar PradeshIndia Department of Mathematics Shri Ramswaroop Memorial Group of Professional Colleges TiwariganjFaizabad RoadLucknowUttar PradeshIndia
出 版 物：《International Journal of Modeling, Simulation, and Scientific Computing》 (建模、仿真和科学计算国际期刊（英文）)
年 卷 期：2012年第3卷第1期
页 面：51-67页
核心收录：
学科分类：07[理学] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 070101[理学-基础数学]
主 题：Precipitation scavenging pollutant gaseous phase droplet phase finite element asymmetric weighting functions
摘 要：The present paper demonstrates the applicability of finite element method of weighted residuals to study the effects of precipitation scavenging through raindrops on the steady-state dispersion of air pollutants in the atmosphere under realistic variable wind and diffusivity ***,the washout of pollutants by rain droplets is considered and the whole analysis for the pollutant concentration is carried out in two phases *** phase and droplet *** model solutions are obtained by using local basis and asymmetric quadratic weighting functions which can provide a promising alternative to the standard Galerkin formulation for problems with advective and diffusive *** results of the model reveal that the precipitation scavenging by rain is quite effective in cleaning the polluted *** the need of pollutant concentration in rain drops regarding acid precipitation(or acid rain),the concentration of the absorbed pollutant in the droplet phase are also ***,the present study provides an understanding on the concentration distribution of pollutant in gaseous and droplet phases,under the effects of variable wind and diffusivity profiles.
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