植被对三向交叉口街道内污染物扩散的影响
The Impact of Vegetation on the Diffusion of Pollutants in Three Way Intersection Streets
罗恒华 1刘小芳1
作者信息
- 1. 安徽工业大学能源与环境学院,安徽马鞍山 243002
- 折叠
摘要
街道交叉口交通尾气严重污染空气质量并危害居民的健康安全.利用计算流体动力学(CFD)开源平台OpenFOAM,探究不同开口角度(θ=30°、45°、60°和90°)的三向交叉口形态在有无树木因子的影响下气体污染物的扩散规律.结果表明,树木能有效地沉积污染物,防止气体污染物扩散.
Abstract
The pollution from vehicular emissions at the intersection of streets poses a serious threat to air quality and the health and safety of residents,particularly at three-way intersections,which are commonly encountered in daily life. This study employs the Computational Fluid Dynamics (CFD) open-source platform OpenFOAM to investigate the influ-ence of different opening angles (θ=30°,45°,60°,and 90°) on the dispersion patterns of gas pollutants at three-way in-tersections,considering the presence or absence of trees. The results indicate that trees can effectively deposit pollutants and impede the diffusion of gas pollutants.
关键词
计算流体力学/OpenFOAM/交叉口形态/街道/污染物Key words
computational fluid dynamics/OpenFOAM/intersection morphology/street/pollutant引用本文复制引用
出版年
2024
NETL
NSTL
万方数据