棚户区改造工程对大气污染物扩散的影响分析研究  

Analysis on Influence of Shantytown Renovation Project on Atmospheric Pollutant Diffusion

作　　者：王海荣 Wang Hairong(Baotou Housing Development and Construction Group Co.,Ltd,Baotou 014010,China)

机构地区：[1]包头市住房发展建设集团有限公司,内蒙古包头014010

出　　处：《环境科学与管理》2020年第2期149-153,共5页Environmental Science and Management

摘　　要：提出一种棚户区改造工程对大气污染物扩散影响的分析,该分析方法是先利用大气和大气内的污染物作为连续性介质,颗粒为离散介质,构建数学模型,确定大气边界层的湍流入口条件。通过风洞实验和以实际建筑物观测实验分析,风洞实验是按照相似性准则,把棚户区的改造工程按照一定比例缩小制作模型,且还要满足平均风速的廊线与湍流度廊线的相似性,再根据实际情况进行重现,证明了建筑物的几何尺寸与污染位置针对建筑物的尾流浓度的影响,其效果相对较为直观。在现场进行观测实验可以依据变化数据值,对特殊情况进行处理,是理论与数学模型的研究结果不可缺少的一种证明手段。This paper presents an analysis of the influence of shantytown renovation project on the diffusion of atmospheric pollutants.It uses atmospheric and atmospheric pollutants as continuous medium and particles as discrete medium to construct a mathematical model to determine the turbulent entrance conditions of atmospheric boundary layer.Through wind tunnel experiments and observation experiments of real buildings,it is concluded that according to the similarity criterion,the reconstruction project of shantytowns is reduced to a certain scale to make models,and the similarity between the gallery of average wind speed and the gallery of turbulence is also satisfied.The geometry of the buildings is proved by reappearing the gallery of average wind speed and turbulence according to the actual situation.The effect of size and pollution location on wake concentration of buildings is relatively intuitive.The field observation experiment can deal with special situations according to the changing data values,which is an indispensable means of proving the results of theoretical and mathematical models.

关 键 词：数学模型 边界条件 棚户区改造 大气污染物 

分 类 号：X501[环境科学与工程—环境工程]