Flow rate increased by electrorotation in a capillary

被引：10

作者：

Lemaire, E ^{[1
]}

Lobry, L ^{[1
]}

Pannacci, N ^{[1
]}

机构：

[1] Univ Nice, CNRS, Phys Mat Condensee Lab, F-06108 Nice 2, France

来源：

JOURNAL OF ELECTROSTATICS | 2006年 / 64卷 / 7-9期

关键词：

DC electric field; electrorotation; electrorheological fluid; effective viscosity; flow in capillary;

D O I：

10.1016/j.elstat.2005.10.013

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：

In this paper, we show that the viscosity of a suspension can be drastically reduced if its particles are rotating faster than the surrounding liquid. We propose to induce particle rotation by applying a DC electric field to a suspension of insulating particles dispersed in a slightly conducting liquid (Quincke rotation). We have studied the flow of such a suspension in a rectangular channel and measure the increase of the flow rate induced by the application of an electric field along the velocity gradient direction (shortest dimension of the channel). (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：586 / 590

页数：5

共 10 条

[1] NEGATIVE-VISCOSITY EFFECT IN A MAGNETIC FLUID
BACRI, JC
PERZYNSKI, R
SHLIOMIS, MI
BURDE, GI
[J]. PHYSICAL REVIEW LETTERS, 1995, 75 (11) : 2128 - 2131
[2] BOSSIS G, 2002, LECT NOTE PHYS, V586, P186
[3] RHEOLOGY OF 2-PHASE SYSTEMS
BRENNER, H
[J]. ANNUAL REVIEW OF FLUID MECHANICS, 1970, 2 : 137 - &
[4] CEBERS A, 2000, MAGNETOHYDRODYNAMICS, V36, P347
[5] CEBERS A, 2000, 2 INT WORKSH EL COND, P206
[6] HASLEY TC, 1992, SCIENCE, V258, P761
[7] Viscosity decrease induced by a DC electric field in a suspension
Lobry, L
Lemaire, E
[J]. JOURNAL OF ELECTROSTATICS, 1999, 47 (1-2) : 61 - 69
[8] Quincke G., 1896, ANN PHYS CHEM, V295, P417, DOI [10.1002/andp.18962951102, DOI 10.1002/ANDP.18962951102]
[9] Torque measurements on ferrofluid cylinders in rotating magnetic fields
Rinaldi, C
Gutman, F
He, XW
Rosenthal, AD
Zahn, M
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 289 : 307 - 310
[10] NEGATIVE VISCOSITY OF FERROFLUID UNDER ALTERNATING MAGNETIC-FIELD
SHLIOMIS, MI
MOROZOV, KI
[J]. PHYSICS OF FLUIDS, 1994, 6 (08) : 2855 - 2861

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