A design analysis of piezoelectric-polymer composite-based valveless micropump

被引：7

作者：

Revathi, S. ^{[1
]}

Padmapriya, N. ^{[2
]}

Padmanabhan, R. ^{[3
]}

机构：

[1] VIT Univ, Sch Elect, Chennai, Tamil Nadu, India

[2] SSN Coll Engn, Dept Math, Chennai, Tamil Nadu, India

[3] VIT Univ, Sch Mech & Bldg Sci, Chennai, Tamil Nadu, India

来源：

INTERNATIONAL JOURNAL OF MODELLING AND SIMULATION | 2019年 / 39卷 / 02期

关键词：

Valveless micropump; diffuser efficiency; flow rate; composite actuator; analytical model; COMSOL simulation; DIFFUSER ELEMENTS; FLOW;

D O I：

10.1080/02286203.2018.1482521

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents the three-dimensional numerical simulation of a micropump, including diffuser and analytical modelling of the micropump flow rate. The numerical simulation of the diffuser is performed in all possible flow regimes to optimize its geometry for maximum efficiency. The deflection of the piezoelectric polymer composite circular actuator is analytically solved by theory of bending plates to determine the volumetric change and flow rate. The result is then extended for actuator bonded to diaphragm of the micropump considering it as bilaminar plates. From the simulation results, it is found that and the diffuser angle >30 degrees results in flow recirculation and reduction in the efficiency. The flow rate of the micropump obtained from analytical model and the numerical simulation are found to be similar.

引用

页码：110 / 124

页数：15

共 29 条

[1]

Abhari F, 2012, INT J ELECTROCHEM SC, V7, P9765

[2] A comparative approach to predicting effective dielectric, piezoelectric and elastic properties of PZT/PVDF composites [J].