| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 864448 | Procedia Engineering | 2010 | 6 Pages |
Abstract
Wind tunnel experiments have been conducted to investigate the knuckle effect of a soccer ball. In the present experiment, we measured the surface pressure of a ball as well as aerodynamic forces, and made tuft grid visualization to investigate wake structure behind a ball. We are in particular interested in the seemingly random nature of the knuckle effect resulting from the movement of vortical structure behind a ball in the super critical Re range and in the detailed mechanism causing the knuckle effect. Discussion will also refers to knuckle balls of baseball and volleyball.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
