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Arch-supported structures with different geometries in wind flow
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Journal Article
Arch-supported structures with different geometries in wind flow
2023
Overview
This paper presents a computational fluid dynamics study of the evaluation of wind-flow field characteristics around arch-supported structures. The effectiveness of numerical simulations is validated through a detailed comparison with wind tunnel experimental data from the literature. The mean, spatial variation, maximum and minimum wind pressure coefficient distributions on different roof shape arch-supported structures (cusp, flat, and vaulted structures) were examined, and the investigation was extended by discussing different wind directions and various rise-span ratio structures. Results indicate that the wind pressure coefficient and turbulence disturbance on the cusp structure decrease significantly in magnitude compared with other structures. Structures experience relatively larger mean wind pressure coefficient with lower terrain roughness index. Furthermore, for a cusp structure, an increase in the rise-span ratio leads to the growth of wind pressure on the structure surface. In comparison with other wind directions, the roof surface is loaded with stronger negative wind pressure with an oblique wind direction of 45°. In particular, investigations on the effects of oblique wind directions and cusp-shaped structures on wind pressure and field need to be performed because they can be used for optimal engineering design.
Publisher
The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences,Springer Nature B.V
