流体工学部門講演会講演論文集
Online ISSN : 2424-2896
セッションID: 0301
会議情報
0301 大型球技ボールの空力特性の総括
伊藤 慎一郎
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会議録・要旨集 フリー

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As configurations of soccer balls and volleyball balls evolves in recent years, techniques to produce a non-rotating or low-rotating shot/serve with an unexpected orbit have been established. This so-called knuckle-ball effect of the shot/serve is assumed to be caused by instability of the fluid force of the vortex which occurs behind the moving ball. The This study explains the correlation between the fluctuation of fluid forces and that of a ball wake. Moreover the flow visualization on a ball wake was performed to confirm the affection against the fluid force of the ball.
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© 2014 一般社団法人 日本機械学会
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