A dipole-enhanced approximation for a dielectric mixture

被引：24

作者：

Ye, QZ ^{[1
]}

Li, J ^{[1
]}

Zhang, JC ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Environm Engn, Wuhan 430074, Peoples R China

来源：

JOURNAL OF ELECTROSTATICS | 2004年 / 61卷 / 02期

基金：

中国国家自然科学基金;

关键词：

dielectric mixture; electric field strength; saturation charge; dipole-enhanced; finite element model;

D O I：

10.1016/j.elstat.2004.01.023

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a dipole-enhanced approximation to calculate the saturation charge of particles for high-volume fraction particles. An approximate formula for calculating the maximum field strength at the surface of one sphere is derived. It shows the variation of the maximum field strength with the difference in permittivity and the ratio of the particle radius to the distance between particles. The maximum field strengths calculated using this formula are compared with those obtained with the dipole model and the finite-element method, the calculated result shows that the formula is acceptable. A formula for calculating saturation charge of particles is derived, which depends on the volume fraction of particles. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：99 / 106

页数：8

共 17 条

[1] Rate of charging of spherical particles by monopolar ions in electric fields [J].

Adamiak, K .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2002, 38 (04) :1001-1008

[2] ELECTROSTATIC PARTICLE-PARTICLE INTERACTIONS IN ELECTRORHEOLOGICAL FLUIDS [J].

CHEN, Y ;

SPRECHER, AF ;

CONRAD, H .

JOURNAL OF APPLIED PHYSICS, 1991, 70 (11) :6796-6803

[3] CONTINUUM-REGIME FIELD CHARGING IN AN ELECTRON SWARM [J].

CLEMENTS, JS ;

YU, KK .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 1991, 27 (06) :1225-1232

[4] The behaviour of conductive particles in pulsed corona fields [J].

Dascalescu, L ;

Mihailescu, M ;

Mizuno, A .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1996, 29 (03) :522-528

[5] Charging of insulating spheres on the surface of an electrode affected by monopolar ions [J].

Dascalescu, L ;

Rafiroiu, D ;

Samuila, A ;

Tobazeon, R .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 1998, 34 (01) :35-42

[6] APPROXIMATION SCHEME FOR STRONGLY COUPLED PLASMAS - DYNAMICAL THEORY [J].

GOLDEN, KI ;

KALMAN, G .

PHYSICAL REVIEW A, 1979, 19 (05) :2112-2128

[7] An analysis of electrophoresis of concentrated suspensions of colloidal particles [J].

Johnson, TJ ;

Davis, EJ .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1999, 215 (02) :397-408

[8] MULTIPOLAR INTERACTIONS OF DIELECTRIC SPHERES [J].

JONES, TB ;

MILLER, RD ;

ROBINSON, KS ;

FOWLKES, WY .

JOURNAL OF ELECTROSTATICS, 1989, 22 (03) :231-244

[9] Continuum field charging of dielectric spheroids [J].

Kwon, SY ;

Kim, JY ;

Yoon, BJ .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2000, 221 (02) :313-315

[10]

PAUTHENIER MM, 1932, J PHYS RADIUM, V3, P50

← 1 2 →