基于CFD模拟的速度滑冰运动员气动阻力研究

IF 1.1 4区 医学 Q4 ENGINEERING, MECHANICAL
Yuju Wei, Yan-Qun Wang, You Nie, Ding Weng, Lei Chen, Yuan Ma, Zuobo Pang, Jiadao Wang
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引用次数: 0

摘要

对速度滑冰运动员在不同的头、背、臂姿角和队形下的气动阻力进行了数值分析。采用计算流体动力学(CFD)方法研究了滑冰运动员的最佳姿势和团队形成的阻力规律。分离涡模拟(DES)被用作数值技术。CFD结果表明,由于滑雪者迎风侧高压区和背风侧低压区的增加,滑雪者的阻力区随着头部、背部和手臂角度的增加而增加。CFD结果还显示,与一名单独的滑冰选手相比,三名滑冰选手在团体追逐赛中的阻力区都较低。后两名选手的阻力面积明显小于前两名选手,当轴向间距大于0.6时,前两名的阻力面积急剧增加 m.三名选手的阻力面积都随着横向偏移的增加而增加。此外,本文的研究为速度服和头盔的减阻优化提供了重要参考,该方法可推广到其他运动项目。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Aerodynamic drag study of speed skaters using CFD simulations
The aerodynamic drag of speed skaters was analyzed numerically at different posture angles of head, back and arm as well as team formation. Computational Fluid Dynamics (CFD) method was used to investigate the optimized posture of the skater and the drag law of the team formation. Detached Eddy Simulation (DES) was used as the numerical technique. CFD results showed that the drag area of the skater increased with the increasing angle of the head, back, and arms due to the increased high-pressure areas on the windward side and the increased low-pressure areas on the leeward side of the skater. CFD results also showed that all three skaters had lower drag area in the team pursuit competition compared with an isolated skater. The drag area of the latter two skaters was significantly smaller than that of the first skater, and the drag area of the foremost skater increased sharply when the axial spacing was more than 0.6 m. The drag area for all three skaters increased as the lateral offset increased. Moreover, the research in this paper presented an important reference for the drag reducing optimization of speed suits and helmets, and the method could be expanded to other sports.
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来源期刊
CiteScore
3.50
自引率
20.00%
发文量
51
审稿时长
>12 weeks
期刊介绍: The Journal of Sports Engineering and Technology covers the development of novel sports apparel, footwear, and equipment; and the materials, instrumentation, and processes that make advances in sports possible.
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