Complete description of all forces acting on a flying Beach Volleyball was made based on measurements in the wind tunnel. Forces (drag, lift and side force) were measured for different angle of attack β which varies from 0~(°)to 47~(°). Velocity region was from 10 to 25 m/s and revolution region was from 0 to 12.5 rps. Moments (Roll, Yaw, Pitch) were detected. Results are described by means of non-dimensional numbers, such as Reynolds number Re, spin s, drag C_(D), lift C_(L)and side force C_(S)coefficients. Differences in results of C_(D), C_(L)and C_(S)were detected for various angle β and are further described in the article. Conclusions of the investigation can be utilized 1~(st)by ball producers for practical use in development, 2~(nd)for sport Methodist to build more exact methodology for Beach Volleyball, 3~(rd)in basic and applied aerodynamic research.
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机译：根据风洞中的测量值，对飞行的沙滩排球上所有作用力的完整描述。测量了不同迎角β（从0°（°）到47°（°））的力（阻力，升力和侧向力）。速度区域为10到25 m / s，旋转区域为0到12.5 rps。检测到力矩（滚动，偏航，俯仰）。结果用无量纲的数字来描述，例如雷诺数Re，自旋s，阻力C_（D），升力C_（L）和侧向力C_（S）系数。本文针对各种角度β检测了C_（D），C_（L）和C_（S）结果的差异，并在本文中进行了进一步描述。研究的结论可以由球生产商在开发中实际使用，而体育卫理公会则可以在开发沙滩排球中使用更准确的方法，而体育基础研究和应用中的空气动力学研究则可以在体育中使用。
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