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Article

Aerodynamics of Cycling Skinsuits Focused on the Surface Shape of the Arms

by 1,2,* and 1,2
1
Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba 305-8574, Japan
2
Advanced Research Initiative for Human High Performance, University of Tsukuba, Tsukuba 305-8574, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Miguel R. Oliveira Panão
Appl. Sci. 2021, 11(5), 2200; https://doi.org/10.3390/app11052200
Received: 9 February 2021 / Revised: 25 February 2021 / Accepted: 27 February 2021 / Published: 3 March 2021
(This article belongs to the Special Issue Sports Fluid Mechanics)
In cycling, air resistance corresponds to 90% of the resistance on the bicycle and cyclist and 70% of this is applied to the body of the cyclist. Despite research on postures that could reduce air resistance, few studies have been conducted on full-body cycling suits. As the aerodynamics of the surface shape of clothing fabric are still unclear, the airflow around cyclists and air resistance were examined using a computational fluid dynamics (CFD) method and wind tunnel experiment. Specifically, in this study, we focused on how different surface shapes of cycling suit fabrics affect air resistance. CFD results indicate that air resistance during a race was high at the head, arms and legs of the cyclist. In the wind tunnel experiment, a cylinder model resembling the arms was used to compare the aerodynamic forces of various fabrics and the results showed that air resistance changed according to the fabric surface shape. Moreover, by changing the fabric shape of the arms of the cycling suits, reduction of air resistance by up to 8% is achievable. These results suggest that offering the most appropriate suit type to each cyclist, considering race conditions, can contribute to further improvement in their performance. View Full-Text
Keywords: aerodynamics; computer fluid dynamics; cycling; fabric; wind tunnel aerodynamics; computer fluid dynamics; cycling; fabric; wind tunnel
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MDPI and ACS Style

Hong, S.; Asai, T. Aerodynamics of Cycling Skinsuits Focused on the Surface Shape of the Arms. Appl. Sci. 2021, 11, 2200. https://doi.org/10.3390/app11052200

AMA Style

Hong S, Asai T. Aerodynamics of Cycling Skinsuits Focused on the Surface Shape of the Arms. Applied Sciences. 2021; 11(5):2200. https://doi.org/10.3390/app11052200

Chicago/Turabian Style

Hong, Sungchan, and Takeshi Asai. 2021. "Aerodynamics of Cycling Skinsuits Focused on the Surface Shape of the Arms" Applied Sciences 11, no. 5: 2200. https://doi.org/10.3390/app11052200

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