Title :
Electrohydrodynamic Flow in Optoelectrostatic Micropump: Experiment Versus Numerical Simulation
Author :
Adamiak, K. ; Mizuno, A. ; Nakano, M.
Author_Institution :
Univ. of Western Ontario, London
Abstract :
The paper deals with optoelectrostatic pumping of conductive liquids in microchannels. In this technique the fluid is heated by the laser irradiation and exposed to an external AC electric field. If the fluid permittivity and conductivity vary with temperature the electric volume force is generated and pumping effect can be achieved. A numerical model of this phenomenon is presented and it is based on the finite element analysis of the electric, thermal and flow fields. The numerical predictions are compared with the experimental data with a reasonable qualitative agreement.
Keywords :
electrical conductivity; electrohydrodynamics; electrostatic devices; finite element analysis; micro-optomechanical devices; microchannel flow; micropumps; permittivity; conductive liquids; electric fields; electric volume force; electrohydrodynamic flow; external AC electric field; finite element analysis; flow fields; fluid conductivity; fluid permittivity; laser irradiation; microchannels; optoelectrostatic micropump; optoelectrostatic pumping; thermal fields; Electric fields; Electrohydrodynamics; Laser modes; Liquids; Microchannel; Micropumps; Numerical simulation; Permittivity; Pump lasers; Resistance heating;
Conference_Titel :
Industry Applications Conference, 2007. 42nd IAS Annual Meeting. Conference Record of the 2007 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-1259-4
Electronic_ISBN :
0197-2618
DOI :
10.1109/07IAS.2007.11
