文献类型：期刊文献

中文题名：城市街道峡谷高架桥机动车污染物扩散的数值模拟

英文题名：Numerical Simulation of Vehicle Pollutants Dispersion in Urban Street Canyon Under Viaduct

作者：刘长虹[1];杨存攀[1];郑枫戈[1];何家隆[1];梁雨[1]

机构：[1]华东理工大学机械与动力工程学院,上海200237

年份：2016

卷号：30

期号：3

起止页码：199

中文期刊名：上海工程技术大学学报

外文期刊名：Journal of Shanghai University of Engineering Science

语种：中文

中文关键词：街道峡谷;城市交通;高架桥;机动车污染;扩散模拟

外文关键词：street canyon; urban traffic; viaduct; vehicle pollution; dispersion simulation

摘要：针对城市机动车污染物扩散问题,提出了街道峡谷高架桥污染物扩散控制方程,建立了一个三维街道峡谷高架桥模型,采用计算机数值模拟方法,分析了在不同风向影响下的街道峡谷高架桥内空气流场的情况.研究表明,机动车污染物稳态扩散方程,是一种计算机动车污染物在街道峡谷高架桥情况下的扩散分布情况的简便又有效的方法.因此,研究成果可为城市建设规划,污染防治提供理论和应用参考.
For the problem of urban traffic pollutant dispersion,a contral equation in street canyon under viaduct was presented.The 3-D street canyon under viaduct model was developed,and airflow fields in urban street canyon under viaduct were evaluated by numerical simulation.Research shows that steady state diffusion equation can calculate vehicle pollutant dispersion distribution in the street canyon under viaduct,and the research results can provide theory and application reference for urban construction planning,pollution prevention and control.