Dynamics of the crystallization front induced by the temperature gradient at the upper boundary of a horizontal layer of a fluid

Dynamics of the crystallization front induced by the temperature gradient at the upper boundary of a horizontal layer of a fluid Full article

Journal

Optoelectronics, Instrumentation and Data Processing
ISSN: 8756-6990

Output data

Year: 2017, Volume: 53, Number: 2, Pages: 131-135 Pages count : 5 DOI: 10.3103/s8756699017020042

Tags

convection in the water–ice system; crystallization wave; Hilbert optics; optical diagnostics of flows; phase transition in a supercooled fluid

Authors

Arbuzov V.A. ^1,3 , Arbuzov E.V. ^2,3 , Dubnishchev Yu.N. ^1,3 , Berdnikov V.S. ^1,3 , Melekhina O.S. ³

Affiliations

1	Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent’eva 1, Novosibirsk, 630090, Russian Federation
2	Sobolev Institute of Mathematics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Koptyuga 4, Novosibirsk, 630090, Russian Federation
3	Novosibirsk State Technical University, pr. Karla Marksa 20, Novosibirsk, 630073, Russian Federation

The dynamics of the crystallization front induced by the temperature gradient at the upper boundary of a horizontal layer of water bounded by flat thermostatted surfaces is studied. The formation and evolution of convective structures are visualized by methods of the Hilbert optics and digital video recording. The difference in the temperatures of the upper (T1) and lower (T2) thermostats satisfies the condition T1 < T2. In this system, the temperature of the cooled upper surface is an order parameter. Reaching a critical value of this parameter leads to a bifurcation phase transition from the liquid state (supercooled water) to the solid state (ice). The velocity and shape of the crystallization wave front are determined. The spatial-temporal state of the crystallization wave is found, in which the wave front shape is a line of equal velocities. The dynamic profile of the isothermal surface bounding the spatial shape of the solid phase is visualized. © 2017, Allerton Press, Inc.

Arbuzov V.A. , Arbuzov E.V. , Dubnishchev Y.N. , Berdnikov V.S. , Melekhina O.S.
Dynamics of the crystallization front induced by the temperature gradient at the upper boundary of a horizontal layer of a fluid
Optoelectronics, Instrumentation and Data Processing. 2017. V.53. N2. P.131-135. DOI: 10.3103/s8756699017020042 WOS Scopus OpenAlex

Web of science:	WOS:000409138100004
Scopus:	2-s2.0-85020517329
OpenAlex:	W2755330813

DB	Citing
Scopus	4
OpenAlex	1
Web of science	1