Simulation study on microstructure formations in magnetic fluids

被引：18

作者：

Enomoto, Y ^{[1
]}

Oba, K ^{[1
]}

Okada, M ^{[1
]}

机构：

[1] Nagoya Inst Technol, Dept Environm Technol, Nagoya, Aichi 4668555, Japan

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2003年 / 330卷 / 3-4期

关键词：

magnetic fluids; microstructure; nanoparticles; Brownian dynamics; computer simulation;

D O I：

10.1016/S0378-4371(03)00624-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose the Langevin-type microscopic equations of motion for magnetic fluids. Magnetic fluids are modeled as an ensemble of interacting ferromagnetic nanoparticles suspended in a viscous fluid. The present model is described in terms of position vectors of nanoparticles and orientation vectors of their magnetic dipole moments. In this model, forces and torques arising from the magnetic origin and the surrounding fluid flow are included. Effects of non-spherical particle shape are also taken into account. From the Brownian dynamics simulations of the model, it is found that the present model exhibits various microstructure formation processes in magnetic fluids. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：496 / 506

页数：11

共 11 条

[1]

Allen M. P., 1987, COMPUTER SIMULATIONS, DOI [10.1093/oso/9780198803195.001.0001, DOI 10.1093/OSO/9780198803195.001.0001]

[2] Molecular dynamic model of the magnetic properties and microstructure of advanced metal particle dispersions [J].