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Growth rate of an ice crystal in subcooled pure water
Author(s) -
Kallungal Joshy P.,
Barduhn Allen J.
Publication year - 1977
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690230312
Subject(s) - subcooling , thermodynamics , heat transfer , growth rate , natural convection , mechanics , forced convection , thermal , ice crystals , materials science , convection , chemistry , meteorology , physics , geometry , mathematics
New and extensive experimental data on the rate of growth of ice crystals in the a axis direction in quiescent and slow flowing subcooled pure water show conclusively that thermal natural convection is an important heat transfer mechanism controlling the growth rate. At zero and low forced velocities, steady growth is observed only when the crystals grow horizontally or upward. Steady downward growth does not occur in quiescent water. This is consistent with the physical properties of water and the phenomenon of thermal natural convection. Growth rates at high water flow rates vary as the square root of the forced velocity and the 3/2 power of the subcooling and follow the theory of Fernandez and Barduhn (1967) with the ice‐water interfacial energy set at 52 mJ/m 2 (52 erg/cm 2 ).