基于CFD模拟的城市道路汽车尾气扩散分布规律  

Diffusion and Distribution of Automobile Exhaust on Urban Road Based on CFD

作　　者：杨恺 邓建华[1] YANG Kai;DENG Jian-hua(College of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215000,China)

机构地区：[1]苏州科技大学土木工程学院

出　　处：《价值工程》2020年第3期261-262,共2页Value Engineering

摘　　要：城市道路的空间形态对其内部的尾气污染物的扩散分布有显著影响。文章基于CFD建立城市建筑-道路模型,模拟高宽比分别为0.5:1、1:1、1.5:1、2:1的情况下不同风向的尾气污染物分布规律,总结影响尾气扩散的因素以及规划建议,为更科学的防治汽车尾气带来的危害提供依据。The spatial form of urban roads has a significant impact on the diffusion and distribution of exhaust pollutants.Based on CFD,this paper establishes the urban building road model to simulate the distribution of tail gas pollutants in different wind directions when the height width ratio is 0.5:1,1:1,1.5:1 and 2:1 respectively,summarizes the factors that affect the diffusion of tail gas and the planning suggestions,so as to provide a basis for more scientific prevention and control of automobile tail gas hazards.

关 键 词：CFD 城市 尾气污染 分布规律 

分 类 号：X513[环境科学与工程—环境工程]