【摘 要】
：
A new two-sided model of vapour-Iiquid layer system with a deformable interface is proposed. In this model,the vapour recoil effect on the Marangoni-Bénard ins
【机 构】
：
Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080
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A new two-sided model of vapour-Iiquid layer system with a deformable interface is proposed. In this model,the vapour recoil effect on the Marangoni-Bénard instability of a thin evaporating liquid layer can be examined only when the interface deflexion is considered. The instability of a liquid layer undergoing steady evaporation induced by the coupling of vapour recoil effect and the Marangoni effect is analysed using a linear stability theory.We modify and develop the Chebyshev-Tau method to solve the instability problem of a deformable interface system by introducing a new equation at interface boundary. New instability behaviour of the system has been found and the self-amplification mechanism between the evaporation flux and the interface deflexion is discussed.
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