Electroosmosis in a Finite Cylindrical Pore: Simple Models of End Effects

  title={Electroosmosis in a Finite Cylindrical Pore: Simple Models of End Effects},
  author={John D Sherwood and Mao Mao and Sandip Ghosal},
  pages={9261 - 9272}
A theoretical model of electroosmosis through a circular pore of radius a that traverses a membrane of thickness h is investigated. Both the cylindrical surface of the pore and the outer surfaces of the membrane are charged. When h ≫ a, end effects are negligible, and the results of full numerical computations of electroosmosis in an infinite pore agree with theory. When h = 0, end effects dominate, and computations again agree with analysis. For intermediate values of h/a, an approximate… 

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  • E. Yariv
  • Physics
    Journal of Fluid Mechanics
  • 2004
Electro-osmotic flows in the vicinity of surface charge density transitions are studied using a two-dimensional model problem. The analysed configuration consists of an electrolyte solution in