Open AccessIntegrated studies of convection and ice layer formation during cooling of the bottom of a rectangular cavity
Author(s) -
O. S. Zolotukhina,
В. Л. Арбузов,
В. С. Бердников,
Yu. N. Dubnishchev,
V. A. Grishkov,
S. A. Kislitsyn,
K. A. Mitin
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1382/1/012203
Subject(s) - convection , crystallization , supercooling , materials science , mechanics , boundary layer , front (military) , rayleigh number , instability , geology , thermodynamics , natural convection , physics , oceanography
Experimental studies of the processes of crystallization of water as a liquid — simulator of melts with an inverse dependence of the density of melts on temperature — were carried out on two flat models. With the rapid cooling of the bottom of the cavity, substantial undercooling of the bottom layer of the liquid can be observed. The hydrodynamics in the process of growth of the ice layer at the bottom of the cavity was investigated. The effect of convective flow on the rate of crystallization and on the forms of the crystallization front has been studied. The evolution of the temperature field in the process of crystallization of water at the lower cooled boundary of the cavity is studied. It is shown that the evolution of temperature fields tracks the development stages of instability of the bottom layer of a liquid and the development of Rayleigh-Benard convection observed in a hydrodynamic experiment.