Linear and nonlinear viscous flow in two-dimensional fluids

被引：13

作者：

Gravina, D ^{[1
]}

Ciccotti, G ^{[1
]}

Holian, BL ^{[1
]}

机构：

[1] LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545

来源：

PHYSICAL REVIEW E | 1995年 / 52卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.52.6123

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We report on molecular dynamics simulations of shear viscosity eta of a dense two-dimensional fluid as a function of the shear rate gamma. We find an analytic dependence of eta on gamma, and do not find any evidence whatsoever of divergence in the Green-Kubo (GK) value that would be caused by the well-known longtime tail for the shear-stress autocorrelation function, as predicted by the mode-coupling theory. In accordance with the linear response theory, the GK value of eta agrees remarkably well with nonequilibrium values at small shear rates.

引用

收藏

页码：6123 / 6128

页数：6

相关论文

共 28 条

[1] DECAY OF VELOCITY AUTOCORRELATION FUNCTION [J].

ALDER, BJ ;

WAINWRIGHT, TE .

PHYSICAL REVIEW A-GENERAL PHYSICS, 1970, 1 (01) :18-+

[2] THOUGHT-EXPERIMENTS BY MOLECULAR-DYNAMICS [J].

CICCOTTI, G ;

JACUCCI, G ;

MCDONALD, IR .

JOURNAL OF STATISTICAL PHYSICS, 1979, 21 (01) :1-22

[3] DIRECT COMPUTATION OF DYNAMICAL RESPONSE BY MOLECULAR-DYNAMICS - MOBILITY OF A CHARGED LENNARD-JONES PARTICLE [J].

CICCOTTI, G ;

JACUCCI, G .

PHYSICAL REVIEW LETTERS, 1975, 35 (12) :789-792

[4] ASYMPTOTIC TIME BEHAVIOR OF CORRELATION FUNCTIONS .1. KINETIC TERMS [J].

ERNST, MH ;

HAUGE, EH ;

VANLEEUW.JM .

PHYSICAL REVIEW A, 1971, 4 (05) :2055-&

[5] KINETIC-THEORY OF NONLINEAR VISCOUS-FLOW IN 2 AND 3 DIMENSIONS [J].

ERNST, MH ;

CICHOCKI, B ;

DORFMAN, JR ;

SHARMA, J ;

VANBEIJEREN, H .

JOURNAL OF STATISTICAL PHYSICS, 1978, 18 (03) :237-270

[6]

Evans D.J., 1984, COMPUT PHYS REP, V1, P299

[7] MELTING IN SOFT DISK SYSTEMS [J].

EVANS, DJ .

PHYSICS LETTERS A, 1982, 88 (01) :48-50

[8] THE NOSE-HOOVER THERMOSTAT [J].

EVANS, DJ ;

HOLIAN, BL .

JOURNAL OF CHEMICAL PHYSICS, 1985, 83 (08) :4069-4074

[9] NON-EQUILIBRIUM MOLECULAR-DYNAMICS SIMULATION OF COUETTE-FLOW IN TWO-DIMENSIONAL FLUIDS [J].

EVANS, DJ ;

MORRISS, GP .

PHYSICAL REVIEW LETTERS, 1983, 51 (19) :1776-1779

[10] NON-LINEAR VISCOUS-FLOW IN 2 DIMENSIONAL SYSTEMS [J].

EVANS, DJ .

PHYSICAL REVIEW A, 1980, 22 (01) :290-294