Electro-osmotically induced convection at a charge-selective membrane

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The paper is concerned with convection induced by nonequilibrium electroosmosis at an ion exchange electrodialysis membrane, as a source of overlimiting conductance through the membrane. Derivation of nonequilibrium electroosmotic slip condition is recapitulated along with the results of linear stability analysis of quiescent electrodiffusion through a flat ion exchange membrane. Results of numerical calculation pertaining to nonlinear convection, developing from the respective instability, are reported along with those of recent experiments with modified membranes. These latter rule in favor of surface versus bulk origin of overlimiting conductance through ion exchange membranes.

Original languageEnglish
Pages (from-to)397-406
Number of pages10
JournalAdvances in Fluid Mechanics
StatePublished - 1 Dec 2002
EventFourth International Conference on Advances in Fluid Mechanics, AFM 2002 - Ghent, Belgium
Duration: 15 Mar 200217 Mar 2002

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Mechanical Engineering


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