Flow behavior of liquid-solid coupled
system of piezoelectric micropump

doi:10.1007/s11465-008-0003-8

Front. Mech. Eng.

2008, Vol. 3

Issue (1) : 50-54 https://doi.org/10.1007/s11465-008-0003-8

Flow behavior of liquid-solid coupled system of piezoelectric micropump

LU Lijun, WU Jiankang

Wuhan National Laboratory for Optoelectronics, Mechanics Department, Huazhong University of Science & Technology

Download: PDF(243 KB) HTML
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract This paper employs a shallow water model and the finite element method to approximate periodical flows of a micropump to a two-dimensional thickness-averaged flow. A liquid-solid coupled system equation of the micropump is presented. Through the mode analysis of the liquid-solid coupled system, the first-order natural frequency, diaphragm vibration shape and amplitude-frequency relationship are obtained. The vibration response of the diaphragm is calculated when an external electric field is applied. Based on the thickness-averaged flow equation, the periodical flow of the micropump is studied using the finite volume method to investigate the flow behavior and flow rate-frequency characteristics. Numerical results indicate that an optimal working frequency can be obtained, at which the flow rate of the micropump achieves the maximum when the external electric voltage is fixed.

Issue Date: 05 March 2008

Cite this article:

LU Lijun,WU Jiankang. Flow behavior of liquid-solid coupled system of piezoelectric micropump[J]. Front. Mech. Eng., 2008, 3(1): 50-54.

URL:

https://academic.hep.com.cn/fme/EN/10.1007/s11465-008-0003-8
https://academic.hep.com.cn/fme/EN/Y2008/V3/I1/50

1	Tay F E H Microfluidics and bioMEMS applicationsBostonKluwer Academic Publishers 2002, 1st Edition
2	Stemme E Stemme G A valve-less diffuser/nozzle-basedfluid pumpSensors and Actuators A 1993 392159167
3	Laser D J Santiago J G A review of micropumpsJ Micromech Microeng 2004 14I.63564
4	Vishal S Suresh V Garimella J et al.Low Reynolds number flow Through nozzle-diffuserelements in valveless micropumpsSensorsand Actuators A 2004 113294103
5	Michael K Alan E Microfluidics technology andapplicationResearch Studies Press Ltd 2000, 1st Edition
6	Olsson A Stemme G stemme E A valve-less planer fluid pump with two chambersSensors and Actuators A 1995 463549556
7	Ullmann A Fono I Taitel Y A piezoelectric valve-less pump-dynamic modelJournal of Fluids Engineering 2001 23I.19297
8	Ullmann A Fono I The piezoelectric valve-lesspump - improved dynamic modelJournal ofMicroelectromechanical Systems 2002 11I.6655664
9	Olsson A Stemme G Stemme E A numerical design study of the valveless diffuser pumpusing a lumped-mass modalJ Micromech MicroEng 1999 9I.13444
10	Ullman A Thepiezoelectric valve-less pump-performance enhancement analysisSensors And Actuators A 1998 69I.197105
11	Pan L S Ng T Y Liu G R Analytical solutions for the dynamic analysis of a valvelessmicropump - a fluid-membrane coupling studySensors and Actuators A 2001 932173181
12	Zhang Y L Wu J K Numerical study of periodicalflows of piezoelectric valveless micropump for biochipsApplied Math And Mech 2005 26810261033
13	Wang P Han Z X Zhang J Y Complete Handbook of Fluid MechanicsBeijingBeijing University ofAeronautics and Astronautics 1991
14	Wu J K Lu L J Liquid- Solid coupled systemof micropumpsActa Mechanica Solida 2006 184301308

Viewed

Full text

Abstract

Cited

Shared

Discussed