Hydrodynamic drag and electrophoresis of suspensions of fractal aggregates

被引：14

作者：

Coelho, D

Thovert, JF

Thouy, R

Adler, PM

机构：

[1] PTM, LLD, SP2MI, F-86960 Futurosocope, France

[2] Univ Montpellier 2, Lab Sci Mat Vitreux, CNRS, UA 1119, F-34095 Montpellier 5, France

[3] Inst Phys Globe, F-75252 Paris 05, France

来源：

FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY | 1997年 / 5卷 / 03期

关键词：

D O I：

10.1142/S0218348X97000401

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

The hydrodynamic properties of fractal aggregates are investigated numerically by solving the three-dimensional Stokes equations. Aggregates are built with a variety of sizes and fractal dimensions. Their hydraulic radii conductivities and mobilities are evaluated as functions of their volume fraction in the suspension. An influence of the fractal dimension is visible on the hydrodynamic and electrokinetic characteristics of the aggregates. In the dilute limit, our results compare well with the predictions of various mean-field arguments.

引用

页码：507 / 522

页数：16

共 36 条

[1]

Adler P., 1992, Porous Media: Geometry and Transports

[2] HYDRODYNAMIC PROPERTIES OF FRACTAL FLOCS [J].