Proceedings of the 53rd Fluid Dynamics Conference / the 39th Aerospace Numerical Simulation Symposium (June 30 - July 2, 2021. The Japan Society for Aeronautical and Space Sciences : Japan Aerospace Exploration Agency (JAXA), Online meeting)
抄録(英)
According to many badminton players, there are some differences in impact feeling and flight trajectory between feather and synthetic shuttlecocks. The stiffness of the structural materials must affect the impact feeling. The difference in-flight trajectory is thought to be causally related to the Reynolds number dependency. In the present study, using the vertical wind tunnel, static axial force and rolling moment acting on shuttlecocks were measured for a range of Reynolds number 10,000 less than Re less than 43,000. Typical results are as follows: (1) Axial force of the feather shuttlecock declined sharply as the Re number decreased, and differences of axial force between feather and synthetic became remarkable. (2) Contribution of wind-milling drag to the total drag was estimated. The contribution ratio of windmill drag was about 15 - 40 %.
内容記述
形態: カラー図版あり
内容記述(英)
Physical characteristics: Original contains color illustrations