2406 水泳時の手のひら周りに発生する流れ場に関する研究(S43-2 スポーツ流体工学(2),S43 スポーツ流体工学)  [in Japanese] 2406 Research on the flow field around a hand palm in swimming  [in Japanese]

Although the main propelling force is generated by a palm in swimming, it is greatly related to the characteristics of lift and drag forces of a palm. The characteristics change remarkablely, when the fingers of hand palm are opened or closed In this research, 3-dimensional velocity distribution was measured in the wake of hand palms by using X type hot wire probe. Furthermore, the author compared with the lift-drag characteristics of a delta wing analoguized with the configuration of hand palm to those of hand palms. It was shown clearly that hand palms have the similar characteristic in lift-drag specification and in the wake velocity distribution to a delta wing as 3-dimensional wings.