Study on the Environmental Impact of Building Wind Field in Urban Areas: Illustrated by the Case of Taipei 101 Building

• Main Authors: Wang, Chien-Yu, 王千瑜
• Other Authors: Lin, Reui-Kuo
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/c8yag9

碩士 === 國立臺灣海洋大學 === 輪機工程學系 === 107 === Due to the high-rise buildings in the metropolitan area, the low-level wind field pattern is more complicated, which causes the challenge of micro-meteorological research on the street scale of the metropolitan area, affecting the transmission and diffusion of man-made and natural pollutants near the ground. This research project will explore the surrounding wind field structure of high-rise buildings near the Taipei 101 Financial Building in Taipei's Xinyi District, and the structure of the building structure group through the computational fluid dynamics (CFD) numerical model combined with the characteristics of the dual views of atmospheric circulation and computational fluid dynamics. The physical mechanism of turbulence and wake disturbance, and provide a conceptual model for the spread of pollutant-scale street scales and the development of atmospheric boundary disturbance layers. Highly developed urban areas have complicated wind fields due to the high-rise buildings. It is an effective and feasible method to apply scientific calculations and fluid mechanics theory to explore the wind pressure changes of super-high buildings and the wind field structure in environmental areas. This study aims to apply scientific calculation methods to simulate the flow around buildings and their mutual interference phenomena, especially the two kinds of physical mechanisms of shear flow and wake interference. The results show that the square-column structure has different interference effects and changes in the flow field structure due to the Reynolds number change. This article takes the Taipei 101 Financial Building area as an example to explore the wind pressure and wind field changes experienced by buildings, and provides useful data on the environmental impact caused by wind places. The research results are expected to understand the impact and impact of high-rise buildings on atmospheric wind pressure, diffusion disturbances, and noise, as well as models for metropolitan scale diffusion simulation.