New problems of particle transfer in ferrocolloids: Magnetic Soret effect and thermoosmosis

被引：12

作者：

Blums, E ^{[1
]}

机构：

[1] Univ Latvia, Inst Phys, LV-2169 Riga, Latvia

来源：

EUROPEAN PHYSICAL JOURNAL E | 2004年 / 15卷 / 03期

关键词：

D O I：

10.1140/epje/i2004-10067-3

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：

The paper deals with critical reviewing of the experiments on thermodiffusion in ferrocolloids. The observed magnetic Soret effect is much stronger than that predicted theoretically. It is shown that the main reason of that is the influence of the magnetic field on mass diffusion. Besides, some measurements are affected by uncontrolled thermal and solutal magnetic convection. In porous media, when macroscopic convection is suppressed, thermodiffusion is accompanied by thermoosmosis as well as by a microconvective mass transfer induced by particle magnetophoresis on filter grains.

引用

页码：271 / 276

页数：6