上海青浦城区西北片河网调水的数学模型构建与验证  

Establishment and verification of mathematical model for improvement of water quality in a river network in the northwest part of Shanghai's Qingpu urban area

作　　者：黄远东[1] 孙亚男[1] 陈林兴 孙建国 纪桂霞[1] 

机构地区：[1]上海理工大学城市建设与环境工程学院,上海200093 [2]上海市青浦区水利技术推广站,上海201707

出　　处：《上海理工大学学报》2007年第2期160-164,共5页Journal of University of Shanghai For Science and Technology

摘　　要：基于河道几何特征以及污染物对流、湍动扩散和混合稀释的不同机制,构建起模拟上海青浦城区西北片河网内污染物浓度时空分布的二维数学模型;采用两种不同的实际调水工况(先排后引和边引边排),对所建模型进行了验证计算.结果表明,河网内各取样点的污染物浓度实测值与计算值都基本一致.从而证明了所建模型具有工程适用性,可用于模拟上海青浦城区西北片的河网水质调节过程.Based on the principles of convection, turbulent diffusion and mixing of pollutants, a two dimensional mathematical model was developed for evaluating the temporal-spatial distribution of pollutants iri a river network located in the northwest part of Shanghai＇ s Qingpu urban area. Two water transfer cases for water quality improvement were simulated with the model. The computed pollutant concentrations at five different sampling points agree well with the measured data and validate therefore the model.

关 键 词：河网 水质调节 数学模型 数值模拟 

分 类 号：X703[环境科学与工程—环境工程]