公式サッカーボールの表面構造が無回転及び弱回転時の空力特性に与える影響

抄録

In ball games, a changing ball is one of the factors that determine a game, and in soccer, a knuckling ball in which the ball changes irregularly is attracting attention. Research has been conducted on the surface structures of the sphere and the ball, but the aerodynamic characteristics at low rotation and the aerodynamic characteristics of the sphere and the surface structure, which are irregular orbits, have not yet been clarified. Therefore, the purpose of this study is to clarify the relationship between the surface structure of a soccer ball and a knuckling ball. First, the groove volume is measured using various official balls. After that, a drag measurement experiment at no rotation and low rotation by a wind tunnel experiment and a flight trajectory simulation were performed.