Combined action of anticonvective and thermocapillary mechanisms of instability

The combined action of the anticonvective and thermocapillary mechanisms of instabilities in two-layer systems has been considered. The systems are subject to an external heating from above and interfacial heat release. Two analytically solvable cases, the case of a model system with the infinitely...

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Bibliographic Details
Published inPhysics of fluids (1994) Vol. 14; no. 11; pp. 3855 - 3867
Main Authors Nepomnyashchy, A. A., Simanovskii, I. B.
Format Journal Article
LanguageEnglish
Published 01.11.2002
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ISSN1070-6631
1089-7666
DOI10.1063/1.1501283

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Summary:The combined action of the anticonvective and thermocapillary mechanisms of instabilities in two-layer systems has been considered. The systems are subject to an external heating from above and interfacial heat release. Two analytically solvable cases, the case of a model system with the infinitely large heat diffusivity of the bottom fluid and the infinitely small heat expansion coefficient of the top fluid, and the case of long-wave instability in the system between heat insulated horizontal boundaries, have been studied. The convective flows in the real system silicon oil-10 cs-ethylene glycol have been studied by means of the linear stability theory and nonlinear simulations.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.1501283