The Body Shape of Minimum Drag
The Body Shape of Minimum Drag
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最小阻力体形
DOI：
10.4271/760186
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发表时间：
1976
期刊：
影响因子：
--
通讯作者：
A. Cogotti
中科院分区：
文献类型：
--
作者：
A. Morelli;L. Fioravanti;A. Cogotti
在简要回顾了过去为减小物体在地面附近运动时的气动阻力所做的工作之后，发展了一种新的理论方法，以便在施加一定升力分布时确定物体的形状。对诱导阻力的考虑表明，总升力为零，出于稳定性原因，俯仰力矩也应为零。这些条件加上身体横截面面积和形状逐渐变化的条件，导致了身体基本形状的确定。在Pin infarina风洞上实现了一个模型并进行了测试。/GMRL/
After a short review of the work done in the past to reduce the aerodynamic drag of a body moving in the vicinity of the ground, a new theoretical method is developed in order to determine the shape of the body when a certain lift distribution is imposed. Considerations on the induced drag suggest that the total lift is zero as also should be zero the pitching moment for stability reasons. These conditions together with that of gradual variation of the area and shape of the cross sections of the body lead to the determination of the basic shape of the body. A model was realized and tested on the Pin infarina wind tunnel. /GMRL/