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Title: Thermal instability in a layer of water formed by melting ice from below
Authors: Yen, Yin-Chao.
Keywords: Heat transfer
Heat transmission
Heat convection
Issue Date: Mar-1969
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 263.
Description: Research Report
Abstract: The transition in the mode of heat transfer from conduction to convection in a layer of water formed continuously by melting ice from below has been determined experimentally. This was accomplished by locating the inflection point on the curve relating the water-ice interface (or melting front) and time. Thus, the critical Rayleigh number, 𝖱𝖺𝖼, at which convective heat transfer started can be correlated empirically as a function of warm plate temperature, 𝖳𝗌, by 𝖱𝖺𝖼 = 14,200 exp(-6.64 x 10^-2 𝖳𝗌). This relation is valid for 𝖳𝗌 varying from 7.72 to 25.50°C. The initial ice temperature 𝖳𝟢 was varied from -4.8 to -22.00°C. The effect of 𝖳𝟢 was found to be insignificant. Homogeneous, bubble-free ice was prepared and used in all the experiments.
Appears in Collections:CRREL Research Report

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