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- Title
Electroosmosis with Step Changes in Zeta Potential in Microchannels.
- Authors
Horiuchi, Keisuke; Dutta, Prashanta; Ivory, Cornelius F.
- Abstract
The article presents an analytical solution for two-dimensional fluid flow in a rectangular microchannel in the vicinity of a step change in the zeta potential. In the study, the stream function is determined from the creeping flow approximation to the Navier-Stokes equations assuming a fixed volumetric axial flow, a constant electric field, and thin symmetric double layers. The resulting biharmonic equation is derived using a double-sided Laplace transformation, which is then inverted by Heaviside expansion.
- Subjects
TWO-phase flow; ZETA potential; BIHARMONIC equations; NAVIER-Stokes equations; LAPLACE transformation; FLUID dynamics
- Publication
AIChE Journal, 2007, Vol 53, Issue 10, p2521
- ISSN
0001-1541
- Publication type
Article
- DOI
10.1002/aic.11275