title: Two-fluid electroosmotic flow in microchannels.
abstract: This paper presents a mathematical model to describe a two-fluid electroosmotic pumping technique, in which an electrically non-conducting fluid is delivered by the interfacial viscous force of a conducting fluid; the latter is driven by electroosmosis. The electrical potential in the conducting fluid and the analytical solution of the steady two-fluid electroosmotic stratified flow in a rectangular microchannel was presented by assuming a planar interface between the two immiscible fluids. The effects of viscosity ratio, hold-up, concentration, and interfacial zeta potential are analyzed to show the potential feasibility of this technique.
authors.affiliation: School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore.
authors.forename: Yandong
authors.initials: Y
authors.lastname: Gao
authors.forename: Teck Neng
authors.initials: TN
authors.lastname: Wong
authors.forename: Chun
authors.initials: C
authors.lastname: Yang
authors.forename: Kim Tiow
authors.initials: KT
authors.lastname: Ooi