Liquid transport in rectangular microchannels by electroosmotic pumping

被引：290

作者：

Arulanandam, S ^{[1
]}

Li, DQ ^{[1
]}

机构：

[1] Univ Alberta, Dept Mech Engn, Edmonton, AB T6G 2G8, Canada

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2000年 / 161卷 / 01期

关键词：

electroosmotic flow; rectangular microchannel; micropump;

D O I：

10.1016/S0927-7757(99)00328-3

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 [物理化学]; 081704 [应用化学];

摘要：

The characteristics of electroosmotic flow in rectangular microchannels were investigated in this paper. A 2D Poisson-Boltzmann equation and the 2D momentum equation were used to model the electric double layer field and the flow field. The numerical solutions show significant influences of the channel cross-section geometry (i.e. the aspect ratio) on the velocity field and the volumetric flow rate. Also, the numerical simulation of the electroosmotic flow reveals how the velocity field and the volumetric flow rate depend on the ionic concentration, zeta potential, channel size and the applied electrical field strength. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：89 / 102

页数：14

共 16 条

[1]

[Anonymous], 1969, ELECTROPHORESIS

[2]

ELECTROOSMOSIS - A RELIABLE FLUID PROPULSION SYSTEM FOR FLOW-INJECTION ANALYSIS [J].

DASGUPTA, PK ;

LIU, S .

ANALYTICAL CHEMISTRY, 1994, 66 (11) :1792-1798

[3]

MICROMACHINING OF CAPILLARY ELECTROPHORESIS INJECTORS AND SEPARATORS ON GLASS CHIPS AND EVALUATION OF FLOW AT CAPILLARY INTERSECTIONS [J].

FAN, ZH ;

HARRISON, DJ .

ANALYTICAL CHEMISTRY, 1994, 66 (01) :177-184

[4]

Microfluidics - a review [J].

Gravesen, Peter ;

Branebjerg, Jens ;

Jensen, Ole Sondergard .

Journal of Micromechanics and Microengineering, 1993, 3 (04) :168-182

[5]

Hornbeck R. W., 1975, NUMERICAL METHODS

[6]

Hunter R. J., 1988, Zeta Potential in Colloid Science, Principles and Applications, VThird

[7]

MALA GM, 1997, INT J HEAT FLUID FLO

[8]

MANZ A, 1990, 90 MME, P127

[9]

MASLIYAH J, 1994, TECHNICAL PUBLICATIO, V12

[10]

Reuss FF., 1809, Memoires de la Societe Imperiale des Naturalistes de Moscou, V2, P327

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