The Aerodynamics of New Design Soccer Balls Using a Three-Dimensional Printer-Reference-Cited by-同舟云学术

The Aerodynamics of New Design Soccer Balls Using a Three-Dimensional Printer

Published:2024-05-05 Issue:9 Volume:14 Page:3932
ISSN:2076-3417
Container-title:Applied Sciences
language:en
Short-container-title:Applied Sciences

Author:

Hong Sungchan¹^ORCID,Goff John Eric²^ORCID,Asai Takeshi³^ORCID

Affiliation:

1. Department of Sport and Exercise Science, Seoul Women’s University, Seoul 01797, Republic of Korea

2. Department of Physics, University of Lynchburg, Lynchburg, VA 24501-3113, USA

3. Institute of Health and Sports Science, University of Tsukuba, Tsukuba 305-8574, Japan

Abstract

Eight balls were manufactured with a 3D printer to resemble various types of 32-panel soccer balls. One ball was completely smooth, whereas the other seven possessed various dimple patterns on their surface panels. Seam width and seam depth were also varied. Wind-tunnel experiments were performed to extract aerodynamic coefficients, and also to determine the critical Reynolds number for each manufactured ball. A new surface roughness parameter is introduced, and a fitting formula is presented, which allows for the prediction of the critical Reynolds number if the new parameter is known.

Funder

Seoul Women’s University

Publisher

MDPI AG

Link

https://www.mdpi.com/2076-3417/14/9/3932/pdf

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