摘要
本文描述了用双焦点激光测速仪测量叶轮机械槽道内部流场时数据处理的数学模型及其随机误差的计算方法. 由此可以直接获得与激光束方向相垂直平面内的二维速度矢量的大小、方向及紊流度.从而为叶轮机械的三元流动理论提供了强有力的实验手段.
In this paper, a mathematical model of data processing and a calculation method for random error in the measurement of flow velocity inside turbomachinery rotor using Laser-Two-Focus (L2F) velocimeter are presented. By means of this mathod the magnitude and direction of two-dimensional velocity vector as well as the turbulence intensity on the plane vertical to direction of laser beam can be directly obtained. Therefore a strong experimantal means is provide for research in Wu's general three-deme-nsional turbomachine flow theory.
出处
《工程热物理学报》
EI
CAS
1985年第3期294-300,共7页
Journal of Engineering Thermophysics
