Asymmetric Structure of Gas-Liquid Interface(General)
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概要
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The density profiles of the gas-liquid interface of the three-dimensional Lennard-Jones (12-6) particle system are studied by nonequilibrium molecular dynamics simulation. The system is a rectangular parallelepiped box of the size of L_x≫Ly×L_z. Two Nose-Hoover heat baths with different temperature are attached to the regions near both ends in the x-direction. Heat flows in the system in the x-direction and it maintains the system in a gas-liquid coexisting state. A gas-liquid interface exists steadily in the system box and an asymmetric density profile is observed. We consider the characteristic lengths ξ_g and ξ_l in the gas and liquid phase sides defined using density in each phase [numerical formula], respectively. The sum of the characteristic lengths [numerical formula] corresponds to the thickness of the interface. Using ξ_<g,l>, the density profile in the interface is well described by the tanh form in each phase side [numerical formula] tanh [numerical formula]. The critical behavior of this model is consistent with the three-dimensional Ising universality.
- 社団法人日本物理学会の論文
- 2006-07-15
著者
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YUKAWA Satoshi
Department of Earth and Space Science, Osaka University
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ITO Nobuyasu
Department of Applied Physics, The University of Tokyo
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OGUSHI Fumiko
Department of Physics and Electronics, Osaka Prefecture University
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Ito Nobuyasu
Department Of Applied Physics The University Of Tokyo
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Ito Nobuyasu
Department Of Applied Physics Faculty Of Engineering The University Of Tokyo
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Ogushi Fumiko
The Theoretical Biochemistry Laboratory Riken Advanced Science Institute
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Ogushi Fumiko
Department Of Applied Physics School Of Engineering The University Of Tokyo
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Yukawa S
Department Of Applied Physics University Of Tokyo
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Yukawa Satoshi
Department Of Applied Physics Graduate School Of Engineering The University Of Tokyo:department Of E
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OGUSHI Fumiko
Department of Applied Physics, School of Engineering, The University of Tokyo
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YUKAWA Satoshi
Department of Applied Physics, School of Engineering, The University of Tokyo
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ITO Nobuyasu
Department of Applied Physics, School of Engineering, The University of Tokyo
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Ito Nobuyasu
Department of applied Physics
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