Electroosmosis and thermal effects in magnetohydrodynamic (MHD) micropumps using 3D MHD equations

Magnetohydrodynamics (MHD) micropumps which have no moving parts have attracted attention from the microfluidics community. A significant amount of research is being reported in the design, fabrication and operation of such devices. In this work, we report analytical investigation of the physics of...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2007-03, Vol.122 (1), p.42-52
Main Authors: Patel, Vaibhav, Kassegne, Samuel Kinde
Format: Article
Language:English
Subjects:
Actuators
BioMEMS
Devices
Electroosmosis
Joule heating
Lorentz force
Magnetohydrodynamics
Magnetohydrodynamics (MHD)
Mathematical analysis
MHD
Microfluidics
Micromachining
Micropumps
Three dimensional
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Summary:Magnetohydrodynamics (MHD) micropumps which have no moving parts have attracted attention from the microfluidics community. A significant amount of research is being reported in the design, fabrication and operation of such devices. In this work, we report analytical investigation of the physics of such devices and a development of a generalized numerical framework for the solution of the full 3D MHD equations that govern the multi-physics of MHD micropumps. Based on the numerical framework developed, we investigate different flow channel geometries influenced by the micromachining process, effects of non-uniform magnetic and electric fields, Joule heating, and electroosmosis in MHD micropumps.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2006.05.015