davidson2014chaotic

Summary

Chaotic induced-charge electro-osmosis. S.M. Davidson, M.B. Andersen and A. Mani. Physical Review Letters, 112(12):128302, 2014. (URL)

Abstract

We present direct numerical simulations of the coupled Poisson-Nernst-Planck and Navier-Stokes equations for an electrolyte around a polarizable cylinder subject to an external electric field. For high fields, a novel chaotic flow phenomenon is discovered. Our calculations indicate significant improvement in the prediction of the mean flow relative to standard asymptotic models. These results open possibilities for chaos-enhanced mixing in microdevices and provide insight into barriers to efficient electrokinetic micropumps with broad applications in electrochemical and lab-on-a-chip systems.

Bibtex entry

@ARTICLE { davidson2014chaotic, TITLE = { Chaotic induced-charge electro-osmosis }, AUTHOR = { S.M. Davidson and M.B. Andersen and A. Mani }, JOURNAL = { Physical Review Letters }, VOLUME = { 112 }, NUMBER = { 12 }, PAGES = { 128302 }, YEAR = { 2014 }, ABSTRACT = { We present direct numerical simulations of the coupled Poisson-Nernst-Planck and Navier-Stokes equations for an electrolyte around a polarizable cylinder subject to an external electric field. For high fields, a novel chaotic flow phenomenon is discovered. Our calculations indicate significant improvement in the prediction of the mean flow relative to standard asymptotic models. These results open possibilities for chaos-enhanced mixing in microdevices and provide insight into barriers to efficient electrokinetic micropumps with broad applications in electrochemical and lab-on-a-chip systems. }, URL = { https://dx.doi.org/10.1103/PhysRevLett.112.128302 }, }