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本文以圆湍射流为对象，研究了初始扰动参数的改变对湍流拟序结构发展的影响。当雷诺数Ｒｅ＝２９３８，５６４０，１１７５０，以及扰动Ｓｔｒｏｕｈａｌ（Ｓｒ）数在０～０．９范围变化时，通过流场显示，对射流喷口附近过渡区的拟序结构演变过程进行了观测。实验发现，在Ｓｔｒｏｕｈａｌ数为０．５左右时，射流核心区长度最短，拟序结构的发展最显著，且对Ｒｅ数不敏感；拟序结构随初始扰动振幅的增大而增长，但扰动幅值增大到一定程度后，涡的增长趋于不明显。本研究为通过控制湍流拟序结构进而控制湍流提供了初步依据。
In this paper, the turbulent jet flow is taken as an object to study the influence of the initial disturbance parameters on the development of the turbulent simulation structure. When the Reynolds numbers Re = 2938, 5640 and 11750, and the number of disturbance Strouhal (Sr) varied from 0 to 0.9, the evolution of the structure of the ordered structure in the transition zone near the jet orifice was observed by the flow field display. Experiments show that when the Strouhal number is about 0.5, the jet core length is the shortest, and the structure of the proposed structure is the most significant and insensitive to the Reynolds number. The structure of the proposed sequence increases with the amplitude of the initial disturbance, but the disturbance amplitude After the value increased to a certain extent, the vortex growth tended to be insignificant. This study provides a preliminary basis for controlling turbulence by controlling the structure of the turbulent flow.