Urban renewal based wind environment at pedestrian level in high-density and high-rise urban areas in Sai Ying Pun, Hong Kong

2017 International Conference on Building Materials and Materials Engineering

材料科学;土木建筑工程

Yao, J.W.^1 ; Zheng, J.Y.^1 ; Zhao, Y.^1 ; Shao, Y.H.^1 ; Yuan, F.^1

Built Environment Technology Center, College of Architecture and Urban Planning, Tongji University, Shanghai, China^1

关键词: Existing problems;    High rise building;    High-density cities;    Natural ventilation;    Pedestrian level wind environment;    Planning controls;    Urban morphology;    Wind tunnel experiment;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/264/1/012014/pdf
DOI  :  10.1088/1757-899X/264/1/012014

来源: IOP

【 摘 要 】

In high-density and high-rise urban areas, pedestrian level winds contribute to improve comfort, safety and diffusion of heat in urban areas. Outdoor wind study is extremely vital and a prerequisite in high-density cities considering that the immediate pedestrian level wind environment is fundamentally impacted by the presence of a series of high-rise buildings. In this paper, the research site of Sai Ying Pun in Hong Kong will be analysed in terms of geography, climate and urban morphology, while the surrounding natural ventilation has also been simulated by the wind tunnel experiment Computational Fluid Dynamics (CFD). It has found that, the existing problems in this district are the contradiction between planning control and commercial interests, which means some areas around tall buildings are not benefit to the residents because of the unhealthy wind environment. Therefore, some recommendation of urban renewal strategy has been provided.