Active turbulence simulation study of wind loads on standard low-rise building

HU Shangyu; LI Qiusheng; ZHANG Ming

doi:10.11729/syltlx20190157

Volume 34 Issue 4

Aug. 2020

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HU Shangyu, LI Qiusheng, ZHANG Ming. Active turbulence simulation study of wind loads on standard low-rise building[J]. Journal of Experiments in Fluid Mechanics, 2020, 34(4): 22-29. doi: 10.11729/syltlx20190157

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Active turbulence simulation study of wind loads on standard low-rise building

doi: 10.11729/syltlx20190157

1.
Department of Civil and Environmental Engineering, College of Engineering, Shantou University, Shantou Guangdong 515063, China
2.
Department of Architecture and Civil Engineering, City University of Hong Kong, Hong Kong 999077, China
3.
State Environmental Protection Key Laboratory of Atmospheric Physical Modeling and Pollution Control, State Power Environmental Protection Research Institute Co., Ltd., Nanjing 210031, China

Received Date: 2019-11-28
Rev Recd Date: 2020-01-14
Publish Date: 2020-08-25

Abstract

Abstract

This paper presents model scale tests for 1:50 geometrical scale laboratory modeling for the Texas Tech University (TTU) test building in a gust wind tunnel. This tunnel is able to add low frequency turbulence components for generation of large-scale turbulent flows by the conventional passive simulation technique or a technique combining active and passive turbulence generation devices. This paper mainly studies the effects of the turbulence integral length scale and turbulence intensity on wind-induced pressures on the flat roof of TTU full scale building. The results imply that the turbulence intensity has significant influence on the mean wind pressure coefficients at the leading edge of the flat roof under the separation bubble and in the corner zone for the conical vortex flow regime. Meanwhile, the turbulence intensity plays a predominant role in producing the fluctuation and peak pressure at the leading edge or in the corner area. On the other hand, the turbulence integral length scale has no noticeable influence on the mean wind pressure coefficients at the leading edge or in the corner zone. However, the turbulence integral scale length plays a slightly significant role in producing the fluctuation and peak pressure at the leading edge or in the corner zone.
- gust wind tunnel,
- low-rise building,
- flat roof,
- turbulence integral length scale,
- turbulence intensity

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References(17)

References

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