Finite element simulation of an electroosmotic-driven flow division at a T-junction of microscale dimensions

被引：164

作者：

Bianchi, F ^{[1
]}

Ferrigno, A ^{[1
]}

Girault, HH ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Lab Electrochim, CH-1015 Lausanne, Switzerland

来源：

ANALYTICAL CHEMISTRY | 2000年 / 72卷 / 09期

关键词：

D O I：

10.1021/ac991225z

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A finite element formulation is developed for the simulation of an electroosmotic flow in rectangular microscale channel networks. The distribution of the now at a decoupling T-junction is investigated from a hydrodynamic standpoint in the case of a pressure-driven and an electroosmotically driven flow. The calculations are carried out in two steps: first solving the potential distribution arising from the external electric field and from the inherent zeta potential. These distributions are then injected in the Navier Stokes equation for the calculation of the velocity profile. The influence of the various parameters such as the zeta potential distribution, the Reynolds number, and the relative channel widths on the flow distribution is investigated.

引用

页码：1987 / 1993

页数：7

共 41 条

[1] INVESTIGATION OF THE ELECTROOSMOTIC FLOW EFFECT ON THE EFFICIENCY OF CAPILLARY ELECTROPHORESIS [J].

ANDREEV, VP ;

LISIN, EE .

ELECTROPHORESIS, 1992, 13 (11) :832-837

[2]

Andreev VP, 1997, J MICROCOLUMN SEP, V9, P443, DOI 10.1002/(SICI)1520-667X(1997)9:6<443::AID-MCS1>3.0.CO

[3]

2-1

[4] A NOVEL-APPROACH TO ION SEPARATIONS IN SOLUTION - SYNCHRONIZED CYCLIC CAPILLARY ELECTROPHORESIS (SCCE) [J].

BURGGRAF, N ;

MANZ, A ;

VERPOORTE, E ;

EFFENHAUSER, CS ;

WIDMER, HM ;

DEROOIJ, NF .

SENSORS AND ACTUATORS B-CHEMICAL, 1994, 20 (2-3) :103-110

[5] ELECTROKINETIC FLOW IN ULTRAFINE CAPILLARY SLITS [J].

BURGREEN, D ;

NAKACHE, FR .

JOURNAL OF PHYSICAL CHEMISTRY, 1964, 68 (05) :1084-&

[6] AUXILIARY ELECTROOSMOTIC PUMPING IN CAPILLARY ELECTROPHORESIS [J].

DASGUPTA, PK ;

LIU, SR .

ANALYTICAL CHEMISTRY, 1994, 66 (19) :3060-3065

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

DASGUPTA, PK ;

LIU, S .

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

[8]

Effenhauser CS, 1998, TOP CURR CHEM, V194, P51

[9] MANIPULATION OF SAMPLE FRACTIONS ON A CAPILLARY ELECTROPHORESIS CHIP [J].

EFFENHAUSER, CS ;

MANZ, A ;

WIDMER, HM .

ANALYTICAL CHEMISTRY, 1995, 67 (13) :2284-2287

[10] Integrated chip-based capillary electrophoresis [J].

Effenhauser, CS ;

Bruin, GJM ;

Paulus, A .

ELECTROPHORESIS, 1997, 18 (12-13) :2203-2213

← 1 2 3 4 5 →