风场中气态活性污染物（SO_2）中距离传送的数学模型  

Transformation of Active SO_2 Model of Middle-range in the Mind

作　　者：孔祥应[1] 江新华[1] 

机构地区：[1]北京联合大学,北京联合大学电子自动化工程学院

出　　处：《北京联合大学学报》1996年第3期1-7,共7页Journal of Beijing Union University

基　　金：国家"八五"科技攻关课题

摘　　要：酸雨对全球环境的危害已逐渐引起人类的重视。防治、控制酸雨的危害已成为环境工程的一个重要课题。考虑城市燃烧煤为主释放ＳＯ_２，通过气象因子输送、扩散，并考虑到干、湿沉降和化学转化引起的浓度衰减，建立了近距离和中长距离输送ＳＯ_２的数学模型，得到一个线性或拟线性的热传导方程，通过求解和种种实际因素的分析，给出了空间点的浓度估计及地面点的落地浓度估计。he harm of acid rain to the environment is attracting more and more attention. The prevention and control of the harm has become an important task of environmental engineering. The paper is to establish mathematical models of the short-range and middle or long range of ap transportation by analysing the SO_2 emission from burning coal in cities, the transportation and diffusion of meteoroloical factors and the density decay resuting from dry, wet and chemical transfer. This will lead to a liner or a quasi-liner equation. Through the solution and the analysis of the practical factors the estimate of space and earth's surface can be obtained.

关 键 词：酸雨 污染物 数学模型 二氧化硫 风场 

分 类 号：X517[环境科学与工程—环境工程]