Effect of a soccer ball’s seam geometry on its aerodynamics and trajectory
Effect of a soccer ball’s seam geometry on its aerodynamics and trajectory
复制标题
足球接缝几何形状对其空气动力学和轨迹的影响
DOI：
10.1177/1754337119876485
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
T. Asai
中科院分区：
文献类型：
--
作者：
J. Goff;Sungchan Hong;T. Asai
五个不同的足球（每个足球都采用传统的 32 块表面设计）在风洞中进行了测试。只有接缝深度和宽度在球之间有所不同。风洞测试和相关性检查表明，接缝宽度与 R 2 = 0 呈线性拟合。 90 和 p < 10 − 4 比接缝深度更能表明球的临界速度。风洞数据用于许多足球轨迹的计算建模。经确定，接缝几何形状的变化导致行进约 68 米的重击、无旋转踢球的水平范围波动高达 4 米。对于上述的重击、无旋转踢球，这些接缝几何形状的变化也导致了高达 4 米的横向偏转。
Five different soccer balls, each possessing the traditional 32-panel surface design, were tested in a wind tunnel. Only seam depth and width varied between the balls. Wind-tunnel tests and an examination of correlation revealed that seam width with a linear fit R 2 = 0 . 90 and p < 10 − 4 was a stronger indicator of a ball’s critical speed than seam depth. Wind-tunnel data were used for computational modeling of many soccer-ball trajectories. It was determined that variations in seam geometry resulted in fluctuations up to 4 m in the horizontal range of hard-hit, no-spin kicks that travel approximately 68 m. Those seam geometry variations also contributed to lateral deflections up to 4 m for the aforementioned hard-hit, no-spin kicks.
尝试了解足球的空气动力学
DOI：
--
发表时间：
2015
期刊：
影响因子：
--
作者：
Asai;T.
通讯作者：
T.
影响因子：
1.7
作者：
Asai, T.;Seo, K.;Sakashita, R.
通讯作者：
Sakashita, R.