Non-Equilibrium TransportNo Access

DYNAMICS AND STRUCTURE OF GAS-LIQUID INTERFACE

Department of Applied Physics, School of Engineering, The University of Tokyo, Hogo 7-3-1, Bunkyo-ku, Tokyo, 113-8656, Japan

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SATOSHI YUKAWA

Department of Earth and Space Science, School of Science, Osaka University Machikaneyama 1-1, Toyonaka, Osaka, 560-0043, Japan

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NOBUYASU ITO

Department of Applied Physics, School of Engineering, The University of Tokyo, Hogo 7-3-1, Bunkyo-ku, Tokyo, 113-8656, Japan

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https://doi.org/10.1142/S0217979207045153Cited by:1 (Source: Crossref)

Abstract

The structure and the dynamics of the gas-liquid phase interface of the three-dimensional Lennard-Jones (12-6) particle system are studied using nonequilibrium molecular dynamics simulation. Heat flux maintains the system into a gas-liquid coexisting state with a steady interface. In the steady state, the interface shows an asymmetric structure and this is well described by a free energy density model with an asymmetric double-well form. When the system approaches to the steady state, a gas of the temperature profile appears between each phase and the gap value is relaxed to that in the steady state following for large t. It is observed that heat resistance exists in gas-liquid interface in this scale.

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