TIME-DEPENDENT SELF-DIFFUSION IN A SEMIDILUTE SUSPENSION OF BROWNIAN PARTICLES

被引：13

作者：

CICHOCKI, B

FELDERHOF, BU

机构：

[1] RHEIN WESTFAL TH AACHEN, INST THEORET PHYS, W-5100 AACHEN, GERMANY

[2] POLISH ACAD SCI, INST FUNDAMENTAL TECHNOL RES, PL-00049 WARSAW, POLAND

来源：

JOURNAL OF CHEMICAL PHYSICS | 1992年 / 96卷 / 06期

关键词：

D O I：

10.1063/1.462803

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：

We study the time-dependent self-diffusion coefficient for a semidilute suspension of interacting, spherical Brownian particles. It is shown that the parameters needed for a simple approximation to the memory function, which we have proposed in earlier work, may be obtained from the steady-state perturbed pair distribution function. We test the approximation for an exactly solvable model in which the particles interact with a square step or well potential.

引用

页码：4669 / 4675

页数：7

共 18 条

[1]

ABRAMOWITZ A, 1965, HDB MATH FUNCTIONS

[2] CORRELATIONS FOR DILUTE HARD-CORE SUSPENSIONS [J].