Characteristics of lift forces on circular-sectioned tall structure at high Reynolds number based on full-scale measurement

IF 3.4 2区工程技术 Q1 ENGINEERING, MECHANICAL

Journal of Fluids and Structures Pub Date : 2025-05-26 DOI:10.1016/j.jfluidstructs.2025.104349

Lei Wang , Zi-xia Wang , Jie Song , Tong Guo , Liang-hao Zou , Shu-guo Liang

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引用次数: 0

Abstract

The lift force is an important aerodynamic parameter for tall structures with circular cross-section. Due to the difficulty of achieving high Reynolds number (Re) in wind tunnel, acquiring characteristics of lift forces at high Re, especially for the transcritical range, is usually realized by full-scale measurement. As a complement to the previous studies about lift forces based on full-scale measurement at high Re, the present study conducts full-scale measurement on a 210m high chimney to acquire lift force data. Characteristics of lift forces on the circular structure with high Re are then examined in terms of standard deviation of lift force coefficient and Strouhal number (St). A discussion on lift force and St is then carried out based on the data of both the present full-scale measurement and literature. Results of lift force and St show considerable discrepancy, even for the same Re. Some invalid data are then refined by considering the effect of measurement conditions and structural response, to decreases the scatter of lift forces and hence provide more accurate reference for the application of the data in the design.

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基于全尺寸测量的高雷诺数圆截面结构升力特性

升力是圆截面高层结构的重要气动参数。由于在风洞中难以获得高雷诺数（Re），因此通常通过全尺寸测量来获取高雷诺数，特别是跨临界范围的升力特性。作为对以往基于高Re全尺寸测量升力研究的补充，本研究在210m高烟囱上进行全尺寸测量，获取升力数据。然后根据升力系数的标准差和斯特罗哈尔数（St）考察了高Re圆形结构的升力特性。然后根据目前的全尺寸测量数据和文献资料，对升力和St进行了讨论。对于相同的Re，升力和St的计算结果也存在较大的差异。通过考虑测量条件和结构响应的影响，对部分无效数据进行细化，降低升力的离散性，从而为数据在设计中的应用提供更准确的参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Fluids and Structures 工程技术-工程：机械

CiteScore

6.90

自引率

8.30%

发文量

173

审稿时长

65 days

期刊介绍： The Journal of Fluids and Structures serves as a focal point and a forum for the exchange of ideas, for the many kinds of specialists and practitioners concerned with fluid–structure interactions and the dynamics of systems related thereto, in any field. One of its aims is to foster the cross–fertilization of ideas, methods and techniques in the various disciplines involved. The journal publishes papers that present original and significant contributions on all aspects of the mechanical interactions between fluids and solids, regardless of scale.