title: Electrically generated eddies at an eightfold stagnation point within a nanopore.
abstract: 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.
authors.affiliation: Department of Applied Mathematics and Theoretical Physics, University of Cambridge , Wilberforce Road, Cambridge CB3 0WA, United Kingdom.
authors.forename: J D
authors.initials: JD
authors.lastname: Sherwood
authors.affiliation: Department of Mechanical Engineering, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States.
authors.forename: M
authors.initials: M
authors.lastname: Mao
authors.forename: S
authors.initials: S
authors.lastname: Ghosal