空间流场显示的一种新方法──激光片光运动法

A NEW METHOD FOR SPACIAL FLOW VISUALIZATION

用一套能在气垫滑轨上平稳运动的激光片光运动系统，对湍流边界层及其拟序结构进行了空间流场显示，并对其应用范围、使用方法和技术等进行了研究。实验结果表明，这种空间显示法不仅能够较好地揭示流场的空间结构，而且与其它空间流场显示法相比，具有费用低，操作方便，应用范围较广，易于对照片进行准确的定量分析等优点。

This paper introduces the principle and design of a new method of spacial flow visualization--moving sheet of laser light and some experimental skills, and discusses the range and prospect in its application. As an example of its application, the spacial flow visualization of the organized structure in turbulent boundary layer was made.The test results show that the method can be better used to reyeal the spacial structure of flow and has the follow advantages: low cost,convenient in its operation, wide range in its application,possibility for photograph analysing in quantity,and so on.