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Heat transfer from artificial hailstones
Author(s) -
Bailey I. H.,
Macklin W. C.
Publication year - 1968
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49709439910
Subject(s) - reynolds number , heat transfer , materials science , mechanics , divergence (linguistics) , spheres , thermodynamics , meteorology , turbulence , physics , philosophy , linguistics , astronomy
The rate of melting of realistically rough artificial hailstones in an airstream has been measured and the dependence of the rate of heat transfer on Reynolds number determined. The rates of heat transfer show a marked divergence from the values for smooth spheres as the Reynolds number increases from 10 4 to 2 × 10 5 . The results indicate that the effective critical liquid water concentrations of large hailstones (diameters greater than 6 cm) are 1·2 to 3 times those previously computed.