Complete chaotic mixing in an electro-osmotic flow by destabilization of key periodic pathlines

The ability to generate complete, or almost complete, chaotic mixing is of great interest in numerous applications, particularly for microfluidics. For this purpose, we propose a strategy that allows us to quickly target the parameter values at which complete mixing occurs. The technique is applied...

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Bibliographic Details
Published in:Physics of fluids (1994) 2011-07, Vol.23 (7), p.072002-072002-9
Main Authors: Chabreyrie, R., Chandre, C., Aubry, N.
Format: Article
Language:English
Subjects:
Applied fluid mechanics
Chaotic Dynamics
Exact sciences and technology
Fluid dynamics
Fluidics
Fundamental areas of phenomenology (including applications)
Nonlinear Sciences
Physics
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Summary:The ability to generate complete, or almost complete, chaotic mixing is of great interest in numerous applications, particularly for microfluidics. For this purpose, we propose a strategy that allows us to quickly target the parameter values at which complete mixing occurs. The technique is applied to a time periodic, two-dimensional electro-osmotic flow with spatially and temporally varying Helmholtz-Smoluchowski slip boundary conditions. The strategy consists of following the linear stability of some key periodic pathlines in parameter space (i.e., amplitude and frequency of the forcing), particularly through the bifurcation points at which such pathlines become unstable.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.3596127