对佩戴不同类型护目镜的游泳者的头部和帽子进行数值模拟。

IF 2 3区医学 Q3 ENGINEERING, BIOMEDICAL

Sports Biomechanics Pub Date : 2024-09-01 Epub Date: 2021-06-03 DOI:10.1080/14763141.2021.1923793

Daniel A Marinho, Dennis Willemsen, Tiago M Barbosa, António José Silva, J Paulo Vilas-Boas, Henrique P Neiva, Pedro Forte

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引用次数: 0

摘要

本研究旨在通过数值模拟分析泳镜对游泳流体力学的影响。一名精英游泳运动员自愿参与了这项研究。在不佩戴泳镜和佩戴 3 种不同类型的泳镜（Nikko、Ankor 和瑞典）的情况下，对该游泳运动员的头部进行扫描。使用 Fluent 代码以 2 米/秒的速度进行了数值模拟。在不戴护目镜的情况下，粘滞阻力最大（1.65 N），其次分别是安科护目镜（1.64 N）、瑞典护目镜（1.63 N）和日光护目镜（1.62 N）。在不佩戴护目镜的情况下，压力阻力最大（11.34 N），其次是安科（10.87 N）、日光（10.78 N）和瑞典（10.20 N）护目镜。无护目镜条件下的总阻力最大（12.99 N），其次是 Ankor（12.52 N）、Nikko（12.40 N）和瑞典（11.83 N）护目镜。因此，瑞典护目镜产生的流体动力学效果最好，其次是 Nikko 和 Ankor 护目镜，最后是无护目镜。因此，与不戴泳镜相比，泳镜可将游泳者的阻力降至最低。泳镜的设计可能会产生不同的阻力，因此建议至少在比赛中使用泳镜。

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Numerical simulations of a swimmer's head and cap wearing different types of goggles.

The aim of this study was to analyse the effect of swimming goggles on swimming hydrodynamics by numerical simulations. An elite swimmer volunteered for this research. The swimmer's head was scanned both without goggles, and while wearing 3 different types of goggles (Nikko, Ankor and Swedish). Numerical simulations were conducted at 2 m/s with the Fluent code. The condition without goggles showed the highest viscous drag (1.65 N), followed by the Ankor (1.64 N), Swedish (1.63 N) and Nikko (1.62 N) goggles, respectively. The highest pressure drag was found in the situation without goggles (11.34 N), followed by the Ankor (10.87 N), Nikko (10.78 N) and Swedish (10.20 N) goggles. The condition without goggles presented the highest total drag (12.99 N), followed by the Ankor (12.52 N), Nikko (12.40 N) and Swedish (11.83 N) goggles. Thus, Swedish goggles yields the best hydrodynamics, followed by the Nikko and Ankor goggles and lastly without goggles. Thus, goggles minimise the swimmer's drag comparing to not wearing any. The design of the goggles may impose varying drag forces and therefore it is advised to use goggles at least in competition.

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来源期刊

Sports Biomechanics 医学-工程：生物医学

CiteScore

5.70

自引率

9.10%

发文量

135

审稿时长

>12 weeks

期刊介绍： Sports Biomechanics is the Thomson Reuters listed scientific journal of the International Society of Biomechanics in Sports (ISBS). The journal sets out to generate knowledge to improve human performance and reduce the incidence of injury, and to communicate this knowledge to scientists, coaches, clinicians, teachers, and participants. The target performance realms include not only the conventional areas of sports and exercise, but also fundamental motor skills and other highly specialized human movements such as dance (both sport and artistic). Sports Biomechanics is unique in its emphasis on a broad biomechanical spectrum of human performance including, but not limited to, technique, skill acquisition, training, strength and conditioning, exercise, coaching, teaching, equipment, modeling and simulation, measurement, and injury prevention and rehabilitation. As well as maintaining scientific rigour, there is a strong editorial emphasis on ''reader friendliness''. By emphasising the practical implications and applications of research, the journal seeks to benefit practitioners directly. Sports Biomechanics publishes papers in four sections: Original Research, Reviews, Teaching, and Methods and Theoretical Perspectives.