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构造了三维混合层流场用离散涡丝描述的计算模型并进行了数值模拟．给出了流场的涡结构以及不同剪切率、不同扰劝强度下涡结构的特征，得到了流场中的平均速度、动量厚度．由计算被动粒子显示了流场螺旋涡结构的图像．做了相应的流动显示实验研究，所得结果与计算结果非常相近．本研究为了解该流场并由此进行流场控制提供了依据．
The computational model described by the discrete vortex flow in three-dimensional hybrid laminar flow is constructed and numerically simulated. The vortex structure of the flow field and the characteristics of the vortex structure with different shear rates and different perturbation intensities are given, and the average velocity and momentum thickness in the flow field are obtained. Passive particles are calculated to show the image of the spiral vortex structure of the flow field. The corresponding experimental study on flow display was made, and the results obtained are very similar to the calculated results. This study provides the basis for understanding the flow field and the flow field control.