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Article

Computational Fluid Dynamics-Aided Simulation of Twisted Wind Flows in Boundary Layer Wind Tunnel

1
Undergraduate School, Chongqing University, Chongqing 400045, China
2
Key Laboratory of New Technology for Construction of Cities in Mountain Area, School of Civil Engineering, Chongqing University, Chongqing 400045, China
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2024, 14(3), 988; https://doi.org/10.3390/app14030988
Submission received: 23 November 2023 / Revised: 4 January 2024 / Accepted: 15 January 2024 / Published: 24 January 2024
(This article belongs to the Special Issue City Resilience to Windstorm Hazard)

Abstract

The twisted wind flow (TWF), referring to the phenomenon of wind direction varying with height, is a common feature of atmospheric boundary layer (ABL) winds, noticeably affecting the wind-resistant structural design and the wind environment assessment. The TWF can be effectively simulated by a guide vane system in wind tunnel tests, but the proper design and configuration of the guide vanes pose a major challenge as practical experience in using such devices is still limited in the literature. To address this issue, this study aims to propose an approach to determining the optimal wind tunnel setup for TWF simulations using a numerical wind tunnel, which is a replica of its physical counterpart, using computational fluid dynamics (CFD) techniques. By analyzing the mechanisms behind guide vanes for generating TWF based on CFD results, it was found that the design must take into account three key parameters, namely, (1) the distance from the vane system to the side wall, (2) the distance from the vane system to the model test region, and (3) the separation between the vanes. Following the optimal setup obtained from the numerical wind tunnel, TWF profiles matching both the power-law and Ekman spiral models, which, respectively, reflect the ABL and wind twist characteristics, were successfully generated in the actual wind tunnel. The findings of this study provide useful information for wind tunnel tests as well as for wind-resistant structural designs and wind environment assessment.
Keywords: twisted wind flow; wind tunnel testing; CFD; numerical wind tunnel twisted wind flow; wind tunnel testing; CFD; numerical wind tunnel

Share and Cite

MDPI and ACS Style

Yi, Z.; Wang, L.; Li, X.; Zhang, Z.; Zhou, X.; Yan, B. Computational Fluid Dynamics-Aided Simulation of Twisted Wind Flows in Boundary Layer Wind Tunnel. Appl. Sci. 2024, 14, 988. https://doi.org/10.3390/app14030988

AMA Style

Yi Z, Wang L, Li X, Zhang Z, Zhou X, Yan B. Computational Fluid Dynamics-Aided Simulation of Twisted Wind Flows in Boundary Layer Wind Tunnel. Applied Sciences. 2024; 14(3):988. https://doi.org/10.3390/app14030988

Chicago/Turabian Style

Yi, Zijing, Lingjun Wang, Xiao Li, Zhigang Zhang, Xu Zhou, and Bowen Yan. 2024. "Computational Fluid Dynamics-Aided Simulation of Twisted Wind Flows in Boundary Layer Wind Tunnel" Applied Sciences 14, no. 3: 988. https://doi.org/10.3390/app14030988

APA Style

Yi, Z., Wang, L., Li, X., Zhang, Z., Zhou, X., & Yan, B. (2024). Computational Fluid Dynamics-Aided Simulation of Twisted Wind Flows in Boundary Layer Wind Tunnel. Applied Sciences, 14(3), 988. https://doi.org/10.3390/app14030988

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