Stability of two-layer fluid flow
- Autores: Rodionova A.V.1, Rezanova E.V.2,3
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Afiliações:
- Institute of Mathematics and Fundamental Informatics
- Altai State University
- Kutateladze Institute of Thermophysics, Siberian Branch
- Edição: Volume 57, Nº 4 (2016)
- Páginas: 588-595
- Seção: Article
- URL: https://journals.rcsi.science/0021-8944/article/view/159486
- DOI: https://doi.org/10.1134/S0021894416040027
- ID: 159486
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Resumo
The problem of two-layer convective flow of viscous incompressible fluids in a horizontal channel with solid walls in the presence of evaporation is considered in the Oberbeck–Boussinesq approximation assuming that the interface is an undeformable thermocapillary surface and taking into account the Dufour effect in the upper layer which is a mixture of gas and liquid vapor. The effects of longitudinal temperature gradients at the boundaries of the channel and the thicknesses of the layer on the flow pattern and the evaporation rate are studied under conditions of specified gas flow and the absence of vapor flow on the upper boundary of the channel. It is shown that the long-wavelength asymptotics for the decrement is determined from the flow characteristics, the longwavelength perturbations occurring in the system decay monotonically, and the thermal instability mechanism is not potentially the most dangerous.
Sobre autores
A. Rodionova
Institute of Mathematics and Fundamental Informatics
Autor responsável pela correspondência
Email: alevaro@mail.ru
Rússia, Krasnoyarsk, 660041
E. Rezanova
Altai State University; Kutateladze Institute of Thermophysics, Siberian Branch
Email: alevaro@mail.ru
Rússia, Barnaul, 656049; Novosibirsk, 630090
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