E211 Measurements of Time-Space Distribution of Convective Heat Transfer Using a Thin Conductive Film : Frequency-Response and Space-Resolution of a Heated Surface

Abstract

A technique for measurements of time-space distribution of convective heat transfer has been developed using a test surface fabricated from a thin conductive film heated electrically. The fluctuating temperature on the test surface can be measured using infrared thermograph having high frame-rate. In this work, the upper limit of the fluctuating frequency and the lower limit of the spatial wavelength which are detectable using infrared thermography are evaluated analytically.