Steady thermocapillary flows in a two-layer liquid system with flat interfaces

Steady thermocapillary convection is studied in a system of two flat, superposed layers of immiscible liquids with two fluid-fluid interfaces in a configuration similar to that of an encapsulated crystal growth. The layers are bounded on the sides by isothermal vertical walls maintained at different...

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Bibliographic Details
Published in:Journal of crystal growth 1993-01, Vol.126 (2), p.335-346
Main Authors: del Arco, E.Crespo, Extremet, G.P., Sani, R.L.
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Crystal growth
Exact sciences and technology
Finite element method
Fluid surfaces and fluid-fluid interfaces
Heat convection
Heat transfer
Physics
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
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Summary:Steady thermocapillary convection is studied in a system of two flat, superposed layers of immiscible liquids with two fluid-fluid interfaces in a configuration similar to that of an encapsulated crystal growth. The layers are bounded on the sides by isothermal vertical walls maintained at different constant temperatures. A simplified analytical solution is used initially to explore different potential flow regimes in a parameter space of large dimensionality. Then the coupled Navier-Stokes and heat transfer equations are solved numerically with a finite element method via FIDAP, in a rectangular cavity filled with two immiscible liquids in the absence of a gravitational field.
ISSN:0022-0248
1873-5002
DOI:10.1016/0022-0248(93)90042-U