试验采用简化的飞机模型(有尾翼)，建立了包含一对翼尖涡及一对反向旋转的尾翼涡(通过以负迎角安装尾翼得到)的4涡尾流系统。
In the experiment, a simplified aircraft model (with tail wing) is employed to construct a 4-vortex wake system consisting of a pair of tip vortices and a pair of counter rotating tail plane vortices.
首先从预定的广义尾流入手，并引入尖涡涡核作用的半经验修正，对旋翼的自由尾流进行计算分析。
Beginning with the prescribed wake model, a Semi Empirical Correction for the vortex core effect on rotor wake is made and free wake calculation is carried out.
用文中描述的尾流分析方法研究了螺旋尖涡的运动。
The analytical method for predicting the hovering rotor wake is described to investigate the motion of the helical tip vortex.
分析了斜拉桥拉索涡激振动、风雨激振、尾流驰振和抖振的振动机理，并总结了控制这些振动的措施。
The vortex-induced vibration, rain-wind-induced vibration, wake galloping and buffeting of the cable of a cable-stayed bridge are analyzed, and relavant control measures are summarized.
本文根据水洞观察的结果，分析了圆柱体尾流中，卡门涡街形成的原因是由于流动的不稳定性所产生。
Based on the observation and analysis of flow visualization the mechanis of the vortex street has been recognized to be a flow instability probler.
利用非定常流函数涡量方程数值模拟圆柱突然起动尾流涡旋的形成及周期性脱落过程。
The unsteady equations of stream and vorticity functions were used for numerical simulation on the process of the vortex formation and periodic shedding from an impulsively started circular cylinder.
与在相同流动条件下光滑平板后的湍流尾流比较，涡街尾流较宽，平板底部压力较小。
The width of the wake is larger and the base pressure of the plate is lower in comparison with the fully turbulent wake behind a smooth flat plate at the same flow conditions.
伯努利“水丘”、开尔文尾流、涡尾迹、内波尾迹都起源于潜艇水动力学，对于潜艇的非声探测具有重要的应用意义。
The Bernoulli hump, Kelvin wake, vortex wake and internal wave wake, etc. are generated, as the submarine moves in the ocean. These wake signatures may be used in remote sensing of submarine.
在叶栅下游，由于径向正压梯度的影响，低能气体沿尾流区向轮毂输运，引起下通道涡的迅速消散与衰减。
Due to the influence of radial positive pressure gradient, low-energy gas moves along trailing area to hub. That causes rapid dissipation and weakening of downstream passage vortex.
最后，对尾流中涡街形成的机理进行了初步讨论。
Finally, the mechanism of vortex street is briefly discussed.
最后，对尾流中涡街形成的机理进行了初步讨论。
Finally, the mechanism of vortex street is briefly discussed.
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