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.