The square lattice tower with tubular members (SLTTM) is widely used in civil engineering. Wind load is the primary factor affecting the stability of these structures. This paper presents the wind loads of the SLTTM at different Reynolds numbers (Re) through wind tunnel testing and large eddy simulation (LES). A series of wind tunnel tests with four segment models were first conducted to discuss the effects of wind direction, turbulence intensity, and solidity ratio on the aerodynamic force under low and subcritical Reynolds numbers. The LES method was subsequently employed to determine the aerodynamic force coefficient at Re = 191–1.34 × 106 in both the smooth and uniform turbulent wind fields. The results from wind tunnel tests indicate that the mean and fluctuating drag coefficients at low Reynolds numbers are somewhat different from those at subcritical Reynolds numbers. The solidity ratio and wind direction exert a notable influence on the mean drag coefficient, whereas their impact on the fluctuating drag coefficient is relatively minimal. As the turbulence intensity increases, both the mean and fluctuating drag coefficients exhibit a notable rise. The results of the LES at Re = 191–1.34 × 106 show that an increase in turbulence intensity can markedly elevate the fluctuating drag coefficient. However, the effect on the mean drag coefficient is found to depend on the Reynolds number range. The Reynolds number effect on the mean and fluctuating drag coefficients of the SLTTM may be primarily attributed to the members without and with a shielding effect, respectively.
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December 2024
Research Article|
December 06 2024
Wind loads on square lattice towers with tubular members based on wind tunnel test and numerical simulation
Special Collection:
Flow and Civil Structures
Muguang Liu (刘慕广)
;
Muguang Liu (刘慕广)
a)
(Conceptualization, Funding acquisition, Methodology, Supervision, Writing – review & editing)
1
State Key Laboratory of Subtropical Building and Urban Science, South China University of Technology
, Guangzhou 510640, China
2
School of Civil Engineering and Transportation, South China University of Technology
, Guangzhou 510641, China
a)Author to whom correspondence should be addressed: [email protected]
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Shikang Wu (吴世康);
Shikang Wu (吴世康)
(Data curation, Investigation, Supervision, Validation, Writing – original draft, Writing – review & editing)
2
School of Civil Engineering and Transportation, South China University of Technology
, Guangzhou 510641, China
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Wenxia Guan (管文夏);
Wenxia Guan (管文夏)
(Data curation, Investigation, Methodology)
2
School of Civil Engineering and Transportation, South China University of Technology
, Guangzhou 510641, China
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Chunsheng Zhang (张春生);
Chunsheng Zhang (张春生)
(Methodology, Resources)
3
Shenzhen National Climate Observatory, Meteorological Bureau of Shenzhen Municipality
, Shenzhen 518040, China
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Zhuangning Xie (谢壮宁)
Zhuangning Xie (谢壮宁)
(Methodology)
2
School of Civil Engineering and Transportation, South China University of Technology
, Guangzhou 510641, China
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a)Author to whom correspondence should be addressed: [email protected]
Physics of Fluids 36, 127129 (2024)
Article history
Received:
October 10 2024
Accepted:
November 20 2024
Citation
Muguang Liu, Shikang Wu, Wenxia Guan, Chunsheng Zhang, Zhuangning Xie; Wind loads on square lattice towers with tubular members based on wind tunnel test and numerical simulation. Physics of Fluids 1 December 2024; 36 (12): 127129. https://doi.org/10.1063/5.0243306
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