THREE-DIMENSIONAL TEMPERATURE RECONSTRUCTION OF JET FLOW BY USING ULTRASONIC CT(Measurement)

概要

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This paper tries to employ ultrasonic CT to obtain temperature distributions of a hot jet. In regard with CT reconstruction, ART (Algebraic Reconstruction Technique) is suggested to deal with the problems of limited projection by using the good initial distribution instead of zero initial distribution. CT reconstruction simulation is carried out to demonstrate the advantages of the suggested method by evaluating an error function. Temperature measurement of the hot jet is conducted for the experimental verification. With the CFD-based numerical calculation results as the initial distribution for ART reconstruction, it is found that good agreement between CT-reconstructed values and those obtained by thermocouple is confirmed even the projection angle is limited..
一般社団法人日本機械学会の論文
2005-10-05