Nonlinear convective oscillations in two-layer systems with different aspect ratios

Abstract

Nonlinear oscillatory convective flows, developed under the joint action of buoyant and thermocapillary effects in the 47 v2 silicone oil-water system with different layers thicknesses, are investigated. Nonlinear simulations have been performed for twodimensional flows. Transitions between oscillatory convective regimes with different symmetry properties and steady flows, have been studied. It is found that the oscillatory motion is observed in a finite interval of the Grashof number values.

Original language	English
Pages (from-to)	127-137
Number of pages	11
Journal	Microgravity Science and Technology
Volume	24
Issue number	2
DOIs	https://doi.org/10.1007/s12217-012-9305-x
Publication status	Published - Mar 2012

Keywords

Instabilities
Interface
Thermocapillary effect

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)
Modelling and Simulation
Applied Mathematics

Access to Document

10.1007/s12217-012-9305-x

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Simanovskii, I. B., & Kabov, O. A. (2012). Nonlinear convective oscillations in two-layer systems with different aspect ratios. Microgravity Science and Technology, 24(2), 127-137. https://doi.org/10.1007/s12217-012-9305-x

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AB - Nonlinear oscillatory convective flows, developed under the joint action of buoyant and thermocapillary effects in the 47 v2 silicone oil-water system with different layers thicknesses, are investigated. Nonlinear simulations have been performed for twodimensional flows. Transitions between oscillatory convective regimes with different symmetry properties and steady flows, have been studied. It is found that the oscillatory motion is observed in a finite interval of the Grashof number values.

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