Sports Engineering

N. O. Sidelnik

B. W. Young

Sports Eng

Optimising the freestyle swimming stroke: the effect of finger spread

Ferryanto Ferryanto

Motomu Nakashima

Development of a markerless optical motion capture system for daily use of training in swimming

无标记光学运动捕捉系统在游泳训练日常应用中的开发

Alyssa Burritt

Erik Henrikson

Modeling golf ball roll with a variable coefficient of friction

建模摩擦系数可变的高尔夫球滚动

Nicolas Quirion Cantin

Julien Lépine

André Bégin-Drolet

Effect of load and pulling speed on the static coefficient of friction of cross-country skis on snow

负载和牵引速度对越野滑雪板在雪上静摩擦系数的影响

Abstract Loose and baggy clothing is required by the rules of ski cross and snowboard cross. However, it is known from the literature that fluttering garments increase the aerodynamic drag. The aim of this study was to investigate the influence of flexural rigidity and fabric weight on the coefficient of drag C D . Eleven fabrics (550 mm long, 320 mm wide) with different flexural rigidity (0.016–99 µNm) and fabric weight (0.1–2.4 N/m 2 ) were tested in a wind tunnel on a cylinder (width 325 mm, diameter 125 mm) at speeds of 25 to 120 kph (Reynolds numbers Re 60 k-280 k). The general trend showed that fluttering fabrics that are heavier and stiffer create more drag force. All but one fabric had a smaller C D than the bare cylinder in the subcritical flow regime ( C D ≈ 1.1), at least within a Re window of 80 k. One fabric had a consistently higher C D (average: 1.27) than the bare cylinder. The mean C D value of the other ten fabrics ranged from 0.87 to 1.07, with minimum C D values between 0.76 and 1. The C D advantage of the ten fabrics ended at the beginning of the critical flow regime of the bare cylinder between Re 200 k and 220 k. A regression analysis showed that the magnitude of the C D is more influenced by the flexural rigidity of a fabric, normalised to its weight, than by the weight itself, at least at Re &lt; 250 k. The results of this study suggest that ski and snowboard cross athletes’ suits should be made from light and flexible fabrics to reduce aerodynamic drag.

Franz Konstantin Fuss

Drag measurements of fluttering fabrics and their application for sportswear

颤动织物的阻力测量及其在运动服装中的应用

Ioan I. Feier

Aaron P. Bauer

Enhancing bicycle brake cooling with 3D-printed modular ducts

用3D打印模块化管道增强自行车刹车冷却

Stanisław W. Biber

Kristian M. Jones

Alan R. Champneys

Riku Green

Robert Szalai

Correction to: Measurements and linearized models for golf ball bounce on a green

更正：高尔夫球在果岭上的弹跳测量与线性模型

Abbreviation	Sports Eng
Journal Impact	1.60
Quartiles(Global)	SPORT SCIENCES(Q3)

ISSN	1369-7072, 1460-2687
h-index	28

Publication Information	Publisher: Springer Nature，Publishing cycle: ，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 2009，Proportion of original research papers: 96.00%，Self Citation Rate:26.70%， Gold OA Rate: 55.21%

Sports Engineering

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Optimising the freestyle swimming stroke: the effect of finger spread

Development of a markerless optical motion capture system for daily use of training in swimming

Modeling golf ball roll with a variable coefficient of friction

Effect of load and pulling speed on the static coefficient of friction of cross-country skis on snow

Drag measurements of fluttering fabrics and their application for sportswear

Modeling golf ball roll with a variable coefficient of friction

Drag measurements of fluttering fabrics and their application for sportswear

Effect of load and pulling speed on the static coefficient of friction of cross-country skis on snow

Enhancing bicycle brake cooling with 3D-printed modular ducts

Correction to: Measurements and linearized models for golf ball bounce on a green