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Bekezhanova, V. B.
Shefer, I. A.
2019-07-01T07:27:13Z
2019-07-01T07:27:13Z
2018-08
Bekezhanova, V. B. Influence of Gravity on the Stability of Evaporative Convection Regimes [Текст] / V. B. Bekezhanova, I. A. Shefer // Microgravity Science and Technology. — 2018. — Т. 30 (№ 4). — С. 543-560
09380108
https://link.springer.com/article/10.1007/s12217-018-9628-3
https://elib.sfu-kras.ru/handle/2311/110916
The characteristics of convective regimes in a two-layer system have been investigated in the framework of the Boussinesq approximation of the Navier–Stokes equations. An exact invariant solution of the convection equations is used to describe a joint stationary flow of an evaporating liquid and a gas-vapor mixture in a horizontal channel. Thermodiffusion effects in the gas-vapor phase are additionally taken into account in the governing equations and interface conditions. The influence of gravity and thickness of the liquid layer on the hydrodynamical, thermal and concentration characteristics of the regimes has been investigated. Flows of the pure thermocapillary, mixed and Poiseuille’s types are specified for different values of the problem parameters. The linear stability of the evaporative convection regimes has been studied. The types and properties of the arising perturbations have been investigated and the critical characteristics of the stability have been obtained. Disturbances can lead to the formation of deformed convective cells, vortex and thermocapillary structures. The change of the instability types and threshold thermal loads occurs with the increasing thickness of the liquid layer and gravity action.
Evaporative convection
Exact solution
Characteristic perturbations
Stability
Influence of Gravity on the Stability of Evaporative Convection Regimes
Journal Article
Journal Article Preprint
543-560
30.17.35
2019-07-01T07:27:13Z
10.1007/s12217-018-9628-3
Институт математики и фундаментальной информатики
Базовая кафедра математического моделирования и процессов управления
Microgravity Science and Technology
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Q2


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