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第13届国际传热学会年报
Graham de Vahl Davis (open in a new tab) School of Mechanical and Manufacturing Engineering, University of New South Wales, Kensington, NSW, Australia
Eddie Leonardi (open in a new tab) Computational Fluid Dynamics Research Laboratory, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia 2052

ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

ON THE DERIVATION OF THE BOILING CURVE IN SPRAY COOLING FROM EXPERIMENTAL TEMPERATURE-TIME HISTORIES

page 12
DOI: 10.1615/IHTC13.p28.250
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摘要

Hot planar aluminium targets were cooled by water sprays, and mid-plane temperature - time histories were recorded and analyzed by two alternative methods in order to obtain the boiling curve linking wall heat flux and wall temperature. In the first approach, the raw signal was filtered and an inverse heat conduction problem was solved. In the second approach, the boiling curve was parameterized by six shape parameters; for each set of parameters, a direct thermal transient problem was solved using the corresponding curve as a convective boundary condition, thus obtaining a tentative mid-plane temperature - time history to be compared with the experimental one. A minimum problem was then solved by using different algorithms to find optimum shape parameters. The relative merits of the two approaches are discussed.

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