Wind tunnel investigation of Crow instability
Wind tunnel investigation of Crow instability
复制标题
Crow 不稳定性的风洞研究
DOI：
10.2514/3.44503
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发表时间：
1975
影响因子：
2.2
通讯作者：
G. Parkinson
中科院分区：
文献类型：
--
作者：
B. Eliason;I. Gartshore;G. Parkinson
在大型风洞中研究了尾涡对的相互不稳定性。使用充满氦气的肥皂泡观察旋涡，用热线风速计探测核心。进行了测量，以便计算机翼升力、尾涡的环流、涡核的直径以及不稳定涡的振荡波长和平面。结果表明，Crow和Parks的线性理论都能很好地预测不稳定性，但一致性取决于涡核直径的定义。
The mutual instability of a trailing vortex pair has been studied in a large wind tunnel. The vortices were visualized using helium-filled soap bubbles and the cores probed with a hot-wire anemometer. Measurements were made to permit calculation of the wing lift, the circulation of the trailing vortices, the diameter of the vortex cores, and the wavelength and plane of oscillation of the unstable vortices. The results show that the linear theories of either Crow or Parks closely predict the characteristics of the instability, the agreement depending on the definition of the vortex core diameter.