A Numerical Study Of Cyclist-Cyclist Aerodynamic Interaction Towards Efficient Overtaking Strategy

IF 1.8 3区工程技术 Q3 ENGINEERING, MECHANICAL

Journal of Fluids Engineering-Transactions of the Asme Pub Date : 2023-10-30 DOI:10.1115/1.4063935

Sinforiano Cantos, Kwan Pui Mok, Peng Zhou, Hanbo Jiang, Xiaochen Mao, Siyang Zhong, Xin Zhang

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引用次数: 0

Abstract

Abstract In cycling races, overtaking is a crucial maneuver that involves drafting behind and moving to the side of another cyclist. The flow interaction between the cyclists has a very significant impact on the aerodynamic performance. Previous experimental and numerical studies have shown the aerodynamic drag changes at certain relative positions between cyclists. This study aims at providing a comprehensive aerodynamic power contour along a complete overtaking path, detailing the power at different relative positions to develop efficient overtaking strategies. The aerodynamic results are obtained with numerical simulations, the accuracy of which is validated against wind tunnel experiments. Improved sampling and data-fitting approaches are employed to enhance previous findings. The results show that starting the overtaking maneuver closest to the leading cyclist and overtaking with a larger lateral separation is the most aerodynamically efficient strategy. These findings provide valuable insights into developing optimal overtaking strategies in competitive cycling races.

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面向高效超车策略的自行车-自行车空气动力学相互作用数值研究

在自行车比赛中，超车是一项至关重要的动作，它涉及到在另一名自行车手身后和移动到另一名自行车手的一边。自行车手之间的流动相互作用对其气动性能有重要影响。以往的实验和数值研究表明，在一定的相对位置上，骑自行车者之间的空气阻力会发生变化。本研究旨在提供完整超车路径上的综合气动动力轮廓，详细描述不同相对位置的动力，从而制定有效的超车策略。通过数值模拟得到了气动结果，并通过风洞实验验证了其准确性。采用改进的抽样和数据拟合方法来增强先前的发现。结果表明，在离领跑者最近的位置开始超车动作，并采用较大的横向间隔进行超车是最有效的空气动力学策略。这些发现为在竞争性自行车比赛中制定最佳超车策略提供了有价值的见解。

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 Engineering-Transactions of the Asme 工程技术-工程：机械

CiteScore

4.60

自引率

10.00%

发文量

165

审稿时长

5.0 months

期刊介绍： Multiphase flows; Pumps; Aerodynamics; Boundary layers; Bubbly flows; Cavitation; Compressible flows; Convective heat/mass transfer as it is affected by fluid flow; Duct and pipe flows; Free shear layers; Flows in biological systems; Fluid-structure interaction; Fluid transients and wave motion; Jets; Naval hydrodynamics; Sprays; Stability and transition; Turbulence wakes microfluidics and other fundamental/applied fluid mechanical phenomena and processes