台风背景下基于计算流体力学数值模拟的上海市街道风环境评估

Evaluation of Street Wind Environment in Shanghai Based on Computational Fluid Dynamics Numerical Simulation Under Typhoon Background

摘要:

以上海市徐汇区为建成区代表，以金山区为市郊滨海区代表，从行道树视角出发，通过分析气象数据，以台风高发时期的最大风速和最多风向为基础数据，输入计算流体力学（computational fluid dynamics，CFD）进行研究区域的风环境模拟，从风速等级、街道走向与道路绿化结构出发分别评价街道“风?树”生态，得到研究区域的风环境评价结果。

Abstract:

This paper， using Xuhui District of Shanghai as a representative of urban areas and Jinshan District as a representative of suburban coastal areas， analyzed meteorological data from the perspective of street trees， focusing on the maximum wind speed and direction during periods of high typhoon frequency. Then， it inputted these basic data into CFD（computational fluid dynamics） simulations to model the wind environment of the study area. Afterwards， it evaluated the “wind-tree” ecology of the streets based on wind speed grades， street orientation， and the road greening structure. Finally， it obtained the comprehensive evaluation results of the wind environment in the targeted areas.