HYDRODYNAMIC FRICTION OF ARBITRARILY SHAPED BROWNIAN PARTICLES

被引：147

作者：

HUBBARD, JB ^{[1
]}

DOUGLAS, JF ^{[1
]}

机构：

[1] NATL INST STAND & TECHNOL, DIV POLYMERS, GAITHERSBURG, MD 20899 USA

来源：

PHYSICAL REVIEW E | 1993年 / 47卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.47.R2983

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 present a simple and accurate method of estimating the translational hydrodynamic friction on rigid Brownian particles of arbitrary shape. The Brownian friction coefficient f takes the form f = 6pietaC(OMEGA), where C(OMEGA) is mathematically equivalent to the electrostatic capacitance of the particle OMEGA in units where the capacity of a sphere equals its radius. This formula is particularly useful for particles consisting of a few globular subunits, for which slender body approximations are not very accurate.

引用

页码：R2983 / R2986

页数：4

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