Analysis of wind environmental characteristics around a square building

2018 2nd International Conference on Environmental and Energy Engineering

生态环境科学;能源学

Chen, Q.H.^1 ; Hu, H.T.^1 ; Qian, C.Z.^1 ; Chen, C.P.^1,2

West Coast Wind Engineering Research Center, Xiamen University of Technology, Xiamen, Fujian

361024, China^1

Xiamen Ocean Vocational College, Xiamen, Fujian

361100, China^2

关键词: Downward flow;    Environmental characteristic;    Flow features;    Incoming flows;    Lateral Flow;    Maximum speed;    Speed increase;    Wind environment;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/146/1/012026/pdf
DOI  :  10.1088/1755-1315/146/1/012026

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The simulation of the wind environment around a square building is conducted in this paper. Two obvious flow features and their law are presented. When the airflow comes to the building, it separates into four branches, namely up-and-down flows and lateral flows. Firstly, the up-and-down flows are demarcated at 3/4 of the height with varied incoming flow speed. The upward flow reaches maximum speed at the roof and runs over the building, forming vortex in the leeside. The downward flow also achieves the maximum value near the bottom. Secondly, the lateral flows separate symmetrically about the axis and the lateral speed increases from zero along the width direction till the stream reaches the edges of the building and then decreases gradually. The study of the wind flow around a single building plays a basic role in the wind environment research of multi-buildings.