Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 21, 2018 - November 23, 2018
The purpose at this study is to clarify the influence of aerodynamic characteristics for various groove shape of soccer balls by a wind tunnel experiments. The width and the depth of the groove of ball surface were changed. Drag coefficient was measured in the range of Reynolds number 0.6×105~3.6×105. As a result of experiment, it was revealed that a critical region changed to the low Reynolds number and the drag coefficient in the super critical region increase as a groove depth is deep. The drag coefficient in the super critical region increase as the groove volume increases.
The Proceedings of Joint Symposium: Symposium on Sports Engineering, Symposium on Human Dynamics
