329 軟式野球ボールのデザインと空力特性(スポーツ工学2)(OS.07 : スポーツ工学)

概要

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This paper is described on the aerodynamic characteristics to the design of rubber ball. This study is a basic research for optimum design of surface structure of the rubber-ball used in baseball. As a first stage, it is important the fact of the rubber-ball in which the flying characteristics in the non-rotational stage is grasped. The balls used for experiment were used the ball of 5 kinds of surface structure such as smooth sphere, ball with dimples, ball with the seam, and ball with dimple and seam. From these experimental results, the difference between aerodynamic lift and drag for this surface structure of the ball were clarified. The flow pattern of the rubber ball circumference for each ball was confirmed by the visualization experiment.
一般社団法人日本機械学会の論文
2001-08-03