Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CFD Analysis of Wind Interference Effects of Three High-rise Buildings
The group influence of three high-rise buildings was modelled by considering the buildings as three circular cylinders. The typical wind tunnel tests of flow around one circular cylinder at a Reynolds number of 3900 and around three circular cylinders in equilateral-triangular arrangements were numerically simulated. The numerical results were in good agreement with wind tunnel test results, demonstrating the feasibility of the numerical model. In the subsequent studies, a two-dimensional model of three circular cylinders in equilateral-triangular arrangements was used as a simplified model for the simulation of flow around the three high-rise buildings. The result showed that at a small spacing ratio, the wake behind two parallel structures downstream of the three was asymmetrical; this result was explained by the phenomenon of bistable flow around practical structures. With an increase in spacing ratios, the asymmetrical wakes of the two parallel structures disappeared, and the range of the critical spacing ratio of bistable flow was identified. The changing tendency of the drag coefficients and the lift coefficients of two parallel structures downstream was not a simple decrease, and was more complicated than that of two side-by-side cylinders. At small spacing ratios, the bistable flow generated an across-wind force.
CFD Analysis of Wind Interference Effects of Three High-rise Buildings
The group influence of three high-rise buildings was modelled by considering the buildings as three circular cylinders. The typical wind tunnel tests of flow around one circular cylinder at a Reynolds number of 3900 and around three circular cylinders in equilateral-triangular arrangements were numerically simulated. The numerical results were in good agreement with wind tunnel test results, demonstrating the feasibility of the numerical model. In the subsequent studies, a two-dimensional model of three circular cylinders in equilateral-triangular arrangements was used as a simplified model for the simulation of flow around the three high-rise buildings. The result showed that at a small spacing ratio, the wake behind two parallel structures downstream of the three was asymmetrical; this result was explained by the phenomenon of bistable flow around practical structures. With an increase in spacing ratios, the asymmetrical wakes of the two parallel structures disappeared, and the range of the critical spacing ratio of bistable flow was identified. The changing tendency of the drag coefficients and the lift coefficients of two parallel structures downstream was not a simple decrease, and was more complicated than that of two side-by-side cylinders. At small spacing ratios, the bistable flow generated an across-wind force.
CFD Analysis of Wind Interference Effects of Three High-rise Buildings
Qiong* Xing (Autor:in) / Jiang Qian (Autor:in)
2018
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Interference effects between two high-rise buildings on wind-induced torsion
| Online Contents | 2016
Interference effects on wind pressure distribution between two high-rise buildings
| Online Contents | 2015
Interference effects on wind pressure distribution between two high-rise buildings
| Tema Archiv | 2015
Interference effects on two high-rise buildings
| British Library Conference Proceedings | 2004