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The Convective Instabilities in a Liquid–Vapor System with a Non-equilibrium Evaporation Interface

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Abstract

Rayleigh–Marangoni–Bénard instability in a system consisting of a horizontal liquid layer and its own vapor has been investigated. The two layers are separated by a deformable evaporation interface. A linear stability analysis is carried out to study the convective instability during evaporation. In previous works, the interface is assumed to be under equilibrium state. In contrast with previous works, we give up the equilibrium assumption and use Hertz–Knudsen’s relation to describe the phase change under non-equilibrium state. The influence of Marangoni effect, gravitational effect, degree of non-equilibrium and the dynamics of the vapor on the instability are discussed.

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Authors and Affiliations

  1. Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China

    Rong Liu & Qiusheng Liu

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  1. Rong Liu
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  2. Qiusheng Liu
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Correspondence to Qiusheng Liu.

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Liu, R., Liu, Q. The Convective Instabilities in a Liquid–Vapor System with a Non-equilibrium Evaporation Interface. Microgravity Sci. Technol. 21 (Suppl 1), 233–240 (2009). https://doi.org/10.1007/s12217-009-9126-8

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  • DOI: https://doi.org/10.1007/s12217-009-9126-8

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