Two kinds of distinctive wake vortices were identified from the experimental results, namely the jet wake vortices and the crossflow wake vortices.
由实验结果可得到两种明显的尾迹涡结构、即射流尾迹涡和横流尾迹涡。
The wake vortices of an impinging jet in crossflow were studied experimentally by means of laser-induced fluorescence (LIF) flow visualization and particle image velocimetry (PIV) measurement.
本文采用LIF(激光诱导荧光)流动显示和PIV(粒子图像速度场仪)测量对横流冲击射流的尾迹涡结构进行了实验研究。
When fish swim, they leave little swirling vortices in their wake. By swimming together in a school, they can transfer energy to one another through these vortices.
当鱼儿游动时，鱼尾会留下一个个小漩涡，当它们成群游动时，它们可以通过这些漩涡转换能量。
When fish swim, they leave little swirling vortices in their wake.
当鱼儿游来游去时，在它们的航迹里会留下小小的漩涡。
The experimental results indicate that the turbulent near wake flow is dominated by the dynamic and kinematic characteristics of vortices at relatively high Reynolds number.
实验结果表明，在较高的雷诺数下翼型近尾迹流动是一种以旋涡的运动学和动力学特性为主导的湍流剪切流。
Not only the wake contraction but also the tip vortices separation has been taken into account.
本文在考虑了尾涡收缩的同时，还计入了桨叶梢涡分离。
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.
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.
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。
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