Electrokinesis in periodic laminar flow in microtubes

Abhijit Bhattacharyya

doi:10.1117/12.388917

Abstract

Flow in microtubes is characterized by the formation of an electrical double layer (EDL), at the fluid-wall interface, and the creation of an electric field that has a retarding effect during pressure-driven fluid flow. Using the 3D form of the Maxwell equations and the Navier-Stokes equations as a starting point, we discuss certain consequences of the theory when applied to the study of the effects of EDL during steady state laminar flow in microtubes. Further, the effects of EDL during periodic laminar flow - caused by a periodic external electric field or a periodic pressure gradient - are considered. Such a scenario is encountered in areas as diverse as microelectronics and the mechanics of blood circulation. Analytical solution of the problem is then given.

Citation Download Citation

Abhijit Bhattacharyya, Abhijit Bhattacharyya, } "Electrokinesis in periodic laminar flow in microtubes", Proc. SPIE 3990, Smart Structures and Materials 2000: Smart Electronics and MEMS, (21 June 2000); doi: 10.1117/12.388917; https://doi.org/10.1117/12.388917

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