Gravity-Driven Instability in a Liquid Film Overlying an Inhomogeneous Porous Layer
ZHAO Si-Cheng1, LIU Qiu-Sheng1**, NGUYEN-THI Henri2, BILLIA Bernard2
1Key Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190 2IM2NP, UMR CNRS 6137, Universitéd'Aix-Marseille III, 13397 Marseille Cedex 20, France
Gravity-Driven Instability in a Liquid Film Overlying an Inhomogeneous Porous Layer
ZHAO Si-Cheng1, LIU Qiu-Sheng1**, NGUYEN-THI Henri2, BILLIA Bernard2
1Key Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190 2IM2NP, UMR CNRS 6137, Universitéd'Aix-Marseille III, 13397 Marseille Cedex 20, France
摘要A new model consisting of a liquid film overlying a saturated and inhomogeneous porous layer is investigated. We concentrate on effects of inhomogeneity on transition of instability modes. Influences of the averaged porosity and the gradient of porosity distribution on the instability behaviors of a liquid-porous layer system are emphasized. The average permeability of the porous layer is a key factor to determine the penetration of convection in the system.
Abstract：A new model consisting of a liquid film overlying a saturated and inhomogeneous porous layer is investigated. We concentrate on effects of inhomogeneity on transition of instability modes. Influences of the averaged porosity and the gradient of porosity distribution on the instability behaviors of a liquid-porous layer system are emphasized. The average permeability of the porous layer is a key factor to determine the penetration of convection in the system.
ZHAO Si-Cheng;LIU Qiu-Sheng**;NGUYEN-THI Henri;BILLIA Bernard
. Gravity-Driven Instability in a Liquid Film Overlying an Inhomogeneous Porous Layer[J]. 中国物理快报, 2011, 28(2): 24702-024702.
ZHAO Si-Cheng, LIU Qiu-Sheng**, NGUYEN-THI Henri, BILLIA Bernard
. Gravity-Driven Instability in a Liquid Film Overlying an Inhomogeneous Porous Layer. Chin. Phys. Lett., 2011, 28(2): 24702-024702.
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2011, Vol. 28 
