Stability control of air pollutant diffusion in Weakly Decaying Delayed States

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Deng, Shuxian^1

Department of Basic Courses, Zhengzhou Shengda University of Economics, Business and Management, Zhengzhou, China^1

关键词: Aerodynamic modeling;    Atmospheric pollution;    Close-coupling method;    Diffusion and migration;    Gaussian diffusion models;    Meteorological condition;    Parameter determination;    Secondary development;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/3/032029/pdf
DOI  :  10.1088/1755-1315/170/3/032029

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

At present, the air pollution problem in our country is prominent and the air pollution is getting more and more serious. Air pollution poses a great threat to the life and health of everyone and the development of the whole society and economy. In order to effectively carry out the air pollution control, we need to accurately grasp the air pollutants in the air diffusion and migration rules, the use of aerodynamic model of weak attenuation of air pollutant particles diffusion model was studied, the Gaussian Diffusion Model The basic structure, the method of parameter determination and the secondary development of GIS were studied deeply. The mathematical model of air pollutant diffusion was constructed by the close coupling method. Furthermore, the aerodynamic analysis of air pollutant particles diffusion under weak decay conditions is given, and the decay control of air pollutants under steady meteorological conditions that are unfavourable to diffusion is pointed out. After visualizing the diffusion results, it can directly and accurately grasp the influence range of pollutants, provide strong support for the research and governance of atmospheric pollution, and at the same time, provide a scientific basis for emergency treatment of sudden atmospheric pollution incidents.