SURFACE-TENSION AND INTERFACE FLUCTUATIONS IN IMMISCIBLE LATTICE GASES

被引：25

作者：

ADLER, C ^{[1
]}

DHUMIERES, D ^{[1
]}

ROTHMAN, DH ^{[1
]}

机构：

[1] ECOLE NORMALE SUPER, CNRS, PHYS STAT LAB, F-75231 PARIS 05, FRANCE

来源：

JOURNAL DE PHYSIQUE I | 1994年 / 4卷 / 01期

关键词：

D O I：

10.1051/jp1:1994119

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a Boltzmann approximation, we calculate the surface tension as a function of population density in a momentum-conserving lattice-gas model of immiscible fluids in two dimensions. The calculation, which predicts that the surface tension vanishes below a critical density, is compared to measurements made from simulations of flat interfaces and bubbles; the fit of theory to data is qualitatively good. Equilibrium fluctuations of flat interfaces are also studied. The fluctuations are empirically observed to be classical, decaying like the inverse square of wavenumber and obeying qualitatively the equipartition of surface energy.

引用

页码：29 / 46

页数：18

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