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Article Dans Une Revue Physics of Fluids Année : 2011

Complete Chaotic Mixing in an Electro-osmotic Flow by Destabilization of Key Periodic Pathlines

Résumé

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 Helmoltz-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.

Dates et versions

hal-00564601 , version 1 (09-02-2011)

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R. Chabreyrie, C. Chandre, N. Aubry. Complete Chaotic Mixing in an Electro-osmotic Flow by Destabilization of Key Periodic Pathlines. Physics of Fluids, 2011, 23 (7), pp.072002. ⟨10.1063/1.3596127⟩. ⟨hal-00564601⟩
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