对流传热边界层温度分布的激光干涉测量  

A LASER INTERFEROMETRIC MEASUREMENT OF THE TEMPERATURE DISTRIBUTION IN CONVECTIVE HEAT TRANSFER BOUNDARY LAYERS

作　　者：陈海韬[1] 夏生杰[1] 陈丽吟[1] 楚泽湘[1] 

机构地区：[1]中国科学院力学研究所,北京100080

出　　处：《力学学报》1993年第6期709-715,共7页Chinese Journal of Theoretical and Applied Mechanics

基　　金：国家自然科学基金

摘　　要：本文介绍利用双镜干涉仪测量对流传热边界层中二维温度分布的方法。当冷空气流经热板模型时,附面层内的干涉条纹发生弯曲。根据条纹弯曲偏移量,由折射率与温度的关系,画出空气温度的二维分布图。整个过程由光学方法及微计算机全盘处理,是一种无接触测量方法。By means of a double mirror interferometry a two-dimensional temperature distribution measurement in convective heat boundary layers is presented. As soon as the cold air flows along a hot plate model, the interferometric fringes bend inside the boundary layer. According to the displacement of the fringe and the relation between temperature and index of refraction, a two-dimensional temperature profile is obtained. This treatment is by the optical and micro-computer method without contact with the flow field.

关 键 词：边界层 温度分布 对流传热 激光法 

分 类 号：TK124[动力工程及工程热物理—工程热物理]