抽样定理法重建流场的三维温度分布

结合气流场温度较低，只能得到较少干涉条纹的实际情况，提出了采用轴样定理法重建流场的三维温度分布的模型，并考查了该方法的计算机模拟运算结果，对具体的对象，进行了实验，并采用图像处理方法对条纹进行了一系列处理，最后重建了二个截面上的温度分布。

THE RECONSTRUCTION OF 3D TEMPERAIURE DISTRIBUTION IN HEAT FLOW BY SAMPLING THEOREM

Based on the fact that only few fringes can be obtained in the low temperaturegas flow,the sampling theorem is adopted for reconstructing the 3D temperature distri-bution. The computer simulation results are given with this algothm. A test flow field is reported.The fringes of heat flow are processed and measured by computer automaticprocessing system. Temperature distributions on two cross-sections of the heat flow are displayed.