Fluid modelling of microfluidic separator channels

被引:10
作者
Townsend, RJ
Hill, M [1 ]
Harris, NR
White, NM
Beeby, SP
Wood, RJK
机构
[1] Univ Southampton, Mech Engn Sch Engn Sci, Southampton SO17 1BJ, Hants, England
[2] Univ Southampton, ECS, Southampton SO17 1BJ, Hants, England
基金
英国工程与自然科学研究理事会;
关键词
microchannels; CFD; ultrasonic separation; fluid separation;
D O I
10.1016/j.snb.2005.03.035
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In a microfluidic ultrasonic separator device, the microchannel geometry is inherently angular due to the anisotropic etch processes used. A CFD model is used to investigate eddy formation induced by this angular geometry. Results are applicable to various microfluidic: devices and show that certain etch patterns significantly reduce eddy formation. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:455 / 462
页数:8
相关论文
共 19 条
[1]   Finite element simulation of pinched pressure-driven flow injection in microchannels [J].
Bai, XX ;
Josserand, J ;
Jensen, H ;
Rossier, JS ;
Girault, HH .
ANALYTICAL CHEMISTRY, 2002, 74 (24) :6205-6215
[2]   Quantification of a novel h-shaped ultrasonic resonator for separation of biomaterials under terrestrial gravity and microgravity conditions [J].
Böhm, H ;
Briarty, LG ;
Lowe, KC ;
Power, JB ;
Benes, E ;
Davey, MR .
BIOTECHNOLOGY AND BIOENGINEERING, 2003, 82 (01) :74-85
[3]   Clarification of plasma from whole human blood using ultrasound [J].
Cousins, CM ;
Holownia, P ;
Hawkes, JS ;
Price, CP ;
Keay, P ;
Coakley, WT .
ULTRASONICS, 2000, 38 (1-8) :654-656
[4]  
Douglas JF, 2000, FLUID MECH
[5]   Mixing in the offstream of a microchannel system [J].
Ehlers, S ;
Elgeti, K ;
Menzel, T ;
Wiessmeier, G .
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2000, 39 (04) :291-298
[6]  
Gad-el-Hak M., 2002, The MEMS Handbook, V2
[7]   A silicon microfluidic ultrasonic separator [J].
Harris, NR ;
Hill, M ;
Beeby, S ;
Shen, Y ;
White, NM ;
Hawkes, JJ ;
Coakley, WT .
SENSORS AND ACTUATORS B-CHEMICAL, 2003, 95 (1-3) :425-434
[8]   Single half-wavelength ultrasonic particle filter:: Predictions of the transfer matrix multilayer resonator model and experimental filtration results [J].
Hawkes, JJ ;
Coakley, WT ;
Gröschl, M ;
Benes, E ;
Armstrong, S ;
Tasker, PJ ;
Nowotny, H .
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2002, 111 (03) :1259-1266
[9]   Force field particle filter, combining ultrasound standing waves and laminar flow [J].
Hawkes, JJ ;
Coakley, WT .
SENSORS AND ACTUATORS B-CHEMICAL, 2001, 75 (03) :213-222
[10]   Modelling of layered resonators for ultrasonic separation [J].
Hill, M ;
Shen, YJ ;
Hawkes, JJ .
ULTRASONICS, 2002, 40 (1-8) :385-392