Numerical study on wind pressure characteristics of Chinese yurt building under downburst wind

Author:

Xu Fan1,Ji Baifeng12ORCID,Xiong Qian1,Liu Guangyi3,Qiu Penghui1,Xing Panpan1,Liu Hui12,Xu Shuaijun1

Affiliation:

1. School of Civil Engineering and Architecture Wuhan University of Technology Wuhan China

2. Hainan Institute Wuhan University of Technology Sanya China

3. School of Civil Engineering and Architecture Chongqing University Chongqing China

Abstract

SummaryInner Mongolia is a high‐frequency thunderstorm region in China, and the downburst caused by the thunderstorm weather is a severe threat to buildings. In order to study the influence of downburst on the wind pressure characteristics of the yurt building, the wind field model of the yurt building under downburst is established based on the computational fluid dynamics method, and the effect of the wall treatment method and turbulence model on the numerical simulation of wind pressure of the yurt building under downburst is analyzed. The results demonstrate that the maximum positive pressure at the windward side of the yurt building occurs at 3/4 of the yurt building height under downburst, and the maximum negative pressure at the roof of the yurt building appears at the center of the roof. Compared with the experimental results, the Shear Stress Transport (SST) k‐ω model is suitable for simulating both sides of the yurt building, while the Reynolds Stress equation Model (RSM) is suitable for simulating the windward side, roof, and leeward of the yurt building. The enhanced wall treatment is appropriate for simulating the remaining sides of the yurt building while the standard wall function is appropriate for simulating both sides of the building.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Subject

Building and Construction,Architecture,Civil and Structural Engineering

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