VELOCITY AUTOCORRELATION FUNCTION IN FLUCTUATING HYDRODYNAMICS - FREQUENCY-DEPENDENCE OF THE KINEMATIC VISCOSITY

被引：8

作者：

TSEKOV, R

RADOEV, B

机构：

[1] Dept. of Phys. Chem., Sofia Univ.

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 20期

关键词：

D O I：

10.1088/0953-8984/4/20/001

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The memory effects in fluids are studied using Mori-Zwanzig formalism. An explicit form of the velocity autocorrelation function (VACF) of the hydrodynamic fluctuations and the corresponding frequency dependence of the kinematic viscosity are obtained. The reasoning is based on a modelling of the Langevin force resulting from an effective collision. The damped, oscillating VACF obtained is in agreement with the known numerical simulation results.

引用

页码：L303 / L305

页数：3

共 9 条

[1]

Berne B. J., 1970, Advances in chemical physics vol. 18, P63, DOI 10.1002/9780470143636.ch3

[2]

Forster D, 1995, HYDRODYNAMIC FLUCTUA

[3] FLUCTUATION-DISSIPATION THEOREM [J].