THE HEAT-FLUX VECTOR FOR HIGHLY INHOMOGENEOUS NONEQUILIBRIUM FLUIDS IN VERY NARROW PORES

被引:58
作者
TODD, BD
EVANS, DJ
机构
[1] Research School of Chemistry, Australian National University, Canberra, ACT 2601
关键词
D O I
10.1063/1.469946
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this paper we present the results of nonequilibrium molecular dynamics simulations of an atomic fluid undergoing planar Poiseuille flow through a narrow slit pore. In particular we examine the heat flux vector for such a fluid and find that it displays weak oscillations with wavelengths that are characteristic of the van der Waals particle diameter. Furthermore, we examine the possibility of a coupling of the heat flux vector with the gradient of the square of the strain rate tensor and find that if such a coupling exists it would be undetectable by an examination of the heat flux vector alone. Its existence only manifests itself in the temperature profile, where a quadratic term would appear in addition to the usual quartic profile predicted by classical Navier-Stokes hydrodynamics. (C) 1995 American Institute of Physics.
引用
收藏
页码:9804 / 9809
页数:6
相关论文
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