SIMULATION OF CONVECTION IN A TWO-PHASE SYSTEM UNDER CONDITIONS OF DIFFUSIVE EVAPORATION IN A CLOSED REGION

SIMULATION OF CONVECTION IN A TWO-PHASE SYSTEM UNDER CONDITIONS OF DIFFUSIVE EVAPORATION IN A CLOSED REGION Full article

Journal

Journal of Applied Mechanics and Technical Physics
ISSN: 0021-8944

Output data

Year: 2023, Volume: 64, Number: 4, Pages: 564-574 Pages count : 11 DOI: 10.1134/s0021894423040028

Tags

two-phase system, thermocapillary convection, evaporation, local heating, numerical simulation.

Authors

Bekezhanova V.B. ¹ , Goncharova Olga N. ² , Ovcharova A.S. ³

Affiliations

1	Institute of Computational Modelling, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia
2	Altai State University, Barnaul, Russia
3	Lavrent’ev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

This paper describes the study of a problem of thermocapillary convection in a flat bounded region filled with liquid and gas in contact along the interfacial interface under weak evaporation. It is proposed to investigate the heat and mass transfer processes and the parameters of phase transitions during local heating using a two-sided mathematical model based on the Oberbeck– Boussinesq equations. The characteristics of mass transfer through a thermocapillary interface due to evaporation and vapor content in the gas layer are analyzed with account for the influence of the Soret and Dufour effects. The results of a numerical study of the evolution of the interface and unsteady flows in a cell are presented. The calculation of the main characteristics of the liquid — gas system and the position of the interface at each time is carried out using a specially developed numerical algorithm. The model presented in this study makes it possible to describe the formation of characteristic thermal and concentration structures and the transition modes of cellular convection with a complex configuration of flows in layers

Bekezhanova V.B. , Goncharova O.N. , Ovcharova A.S.
SIMULATION OF CONVECTION IN A TWO-PHASE SYSTEM UNDER CONDITIONS OF DIFFUSIVE EVAPORATION IN A CLOSED REGION
Journal of Applied Mechanics and Technical Physics. 2023. V.64. N4. P.564-574. DOI: 10.1134/s0021894423040028 WOS Scopus РИНЦ OpenAlex

Бекежанова В.Б. , Гончарова О.Н. , Овчарова А.С.
МОДЕЛИРОВАНИЕ КОНВЕКЦИИ В ДВУХФАЗНОЙ СИСТЕМЕ В УСЛОВИЯХ ДИФФУЗИОННОГО ИСПАРЕНИЯ В ЗАМКНУТОЙ ОБЛАСТИ
Прикладная механика и техническая физика. 2023. Т.64. №4 (380). С.14-26. DOI: 10.15372/PMTF202215141 РИНЦ OpenAlex

Web of science:	WOS:001088066000002
Scopus:	2-s2.0-85174960739
Elibrary:	65285269
OpenAlex:	W4387960225

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