HYDRODYNAMIC FRICTION ON A MOVING MOLECULE

被引：21

作者：

PERALTAFABI, R ^{[1
]}

ZWANZIG, R ^{[1
]}

机构：

[1] UNIV MARYLAND,INST PHYS SCI & TECHNOL,COLLEGE PK,MD 20742

来源：

JOURNAL OF CHEMICAL PHYSICS | 1979年 / 70卷 / 01期

关键词：

D O I：

10.1063/1.437214

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 present some calculations of the hydrodynamic drag on a molecule moving in a viscous fluid. The interaction of the molecule with the fluid is described by an intermolecular potential energy, rather than by imposing boundary conditions on a sharply defined surface. Our procedure requires solution of the Navier-Stokes equations for slow stationary flow of a viscous compressible fluid past a fixed force field. This is done here for two very simple models for the intermolecular potential: a ramp potential and a step potential. The results show that it is possible to calculate a drag force without imposing boundary conditions on a surface. © 1979 American Institute of Physics.

引用

页码：504 / 508

页数：5