| 摘要 |
<p>The invention is a baseball bat having a handle portion and an end portion, the end portion having a generally cylindrical surface, and a striking portion, the surface of the striking portion impressed with a plurality of shallow depressions (2). The depressions (2) are sized and located so as to increase the turbulence of the boundary layer of air flowing over the bat, as compared to the turbulence that would arise under identical conditions due to flow of air over a substantially smooth surfaced control bat, so as to trip the boundary layer and reduce the drag coefficient experienced by the bat, as compared to the drag coefficient that would be experienced by the control bat. Suggested parameters for optimization of the dimple sizes are provided.</p> |
