Electro-osmotic flow and mixing in heterogeneous microchannels.

  title={Electro-osmotic flow and mixing in heterogeneous microchannels.},
  author={Jin-bai Zhang and Guo-Wei He and Feng Liu},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={73 5 Pt 2},
Analytical and numerical studies of secondary electro-osmotic flow (EOF) and its mixing in microchannels with heterogeneous zeta potentials are carried out in the present work. The secondary EOFs are analyzed by solving the Stokes equation with heterogeneous slip velocity boundary conditions. The analytical results obtained are compared with the direct numerical simulation of the Navier-Stokes equations. The secondary EOFs could transport scalar in larger areas and increase the scalar gradients… CONTINUE READING

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