Electrically generated eddies at an eightfold stagnation point within a nanopore

J. D. Sherwood, M. Mao, S. Ghosal

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Electrically generated flows around a thin dielectric plate pierced by a cylindrical hole are computed numerically. The geometry represents that of a single nanopore in a membrane. When the membrane is uncharged, flow is due solely to induced charge electroosmosis, and eddies are generated by the high fields at the corners of the nanopore. These eddies meet at stagnation points. If the geometry is chosen correctly, the stagnation points merge to form a single stagnation point at which four streamlines cross at a point and eight eddies meet.

Original languageEnglish (US)
Article number112004
JournalPhysics of Fluids
Issue number11
StatePublished - Nov 25 2014

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Computational Mechanics


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