Wind-Induced Interference Effect of Chamfered Square Cylinders in Tandem and Side-by-Side Arrangements

Zhang, Jie; Li, Fanghui; Zhang, Zhibo; Zhang, Te; Wang, Cheng; Xiang, Benjun; Zhang, Yuji

doi:10.3390/buildings12122125

Cited by 3 publications

(1 citation statement)

References 36 publications

(47 reference statements)

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“…1 in which the reference side length (L) of the square cylinder is 0.1 m, the height is 4L, the side length of the chamfered corner (D) is λ L, and λ is a constant equal to 0.1. The size of the calculation domain is (40L + C) (flow direction x ) × (20L + B) (span direction y ) × 4L (vertical z ) 27 , 28 to ensure that the blockage ratio is less than 5% 30 . The transverse center distance of the two square cylinders is B, and the flow center distance of the two square cylinders is C. The grid is a non-uniform hexahedron, and the near-wall grid is encrypted as shown in Fig.…”

Section: Model and Working Conditionsmentioning

confidence: 99%

Large eddy simulation on wind-induced interference effects of staggered chamfered square cylinders

Cao,

Wang,

Liu

et al. 2023

Sci Rep

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Chamfered corners in buildings are the main means to reduce the control effect of wind load on the structure, and the interference effect of chamfered buildings cannot be ignored. At present, only the mutual interference coefficients of square and rectangular section buildings are given in the Chinese code, without the interference effect of chamfered buildings being specified. Therefore, in this paper, aerodynamic force and wind pressure coefficients of chamfered square cylinders of different spacing are obtained by the large eddy simulation method. Wind load characteristics, non-Gaussian characteristics and interference effects of chamfered square cylinders with different arrangements are studied based on aerodynamic coefficients, wind pressure coefficients and interference coefficients. The results show that when the wall y plus value is 1, the large eddy simulation is the most accurate to simulate the wind load and wind field parameters. Besides, the aerodynamic effects, non-Gaussian characteristics and interference effects between the chamfered square cylinders are mainly controlled by the cross-wind interval and the spacing (4.0, 4.0) is the characteristic coordinate. That means, when the spacing is smaller than this coordinate, the interference effect of the square cylinder is more obvious. When the spacing coordinate is greater than (4.0, 4.0), the aerodynamic coefficients and non-Gaussian regional distributions of the principal square cylinder and the isolated cylinder are the same, and the interference factor approaches 1.

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Section: Model and Working Conditionsmentioning

confidence: 99%

Large eddy simulation on wind-induced interference effects of staggered chamfered square cylinders

Cao,

Wang,

Liu

et al. 2023

Sci Rep

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Wind-Induced Interference Effects due to Partial Shielding of Building

Amin

2023

J. Inst. Eng. India Ser. A

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Wind loads on a square high-rise building under aerodynamic interference effects of a short building in close proximity

Song,

Chen,

et al. 2024

Physics of Fluids

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Although the interference effect of an equally high or higher building has been examined extensively, the interference effect of a short building in close proximity on the wind pressure of a high-rise building has not yet been investigated comprehensively and thoroughly. In view of the fact that a newly built wind-sensitive high-rise building is more likely to be close to neighboring shorter buildings, this research focuses on wind loads of a square high-rise building under the interference effect of a short building in close proximity. Wind pressure on the principal square building model is measured by wind tunnel test for a series of cases of interfering buildings with different heights and gap distances. In addition, computational fluid dynamics simulation is conducted for a few typical cases. Characteristics of wind flow and pressure on the principal building are then discussed in detail for three typical interfering configurations to uncover the mechanism of interference effect of a short building. Although a short interfering building in many cases tends to decrease wind loads on the high-rise building, especially for the dynamic component of wind loads, the interfering effect from a short building could induce damage to cladding structures from the increased tension caused by the asymmetrical wind pressure, channeling effect, and the wind-over-top flow over the short interfering building.

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Wind-Induced Interference Effect of Chamfered Square Cylinders in Tandem and Side-by-Side Arrangements

Cited by 3 publications

References 36 publications

Large eddy simulation on wind-induced interference effects of staggered chamfered square cylinders

Large eddy simulation on wind-induced interference effects of staggered chamfered square cylinders

Wind-Induced Interference Effects due to Partial Shielding of Building

Wind loads on a square high-rise building under aerodynamic interference effects of a short building in close proximity

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