| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 726564 | Journal of Electrostatics | 2015 | 5 Pages |
•We report a novel method for manipulating fluids in 2D.•We suggest that this flow is observed because of the interaction of the electric field with the surface charge.•In this setup, a time-dependent electric field produces a time-independent flow.
Fluid flows generated on soap films by non-uniform alternating electric fields are studied. Two parallel metal rods subjected to an AC voltage are placed perpendicular to the soap film, which is anchored in a dielectric frame. The fluid flow is generated by electrohydrodynamic induction. At very low signal frequencies there is induced surface charge, but there is no tangential electric field at the surface, so there is no force and no flow. Fluid flow is observed increasing the frequency, when there are both surface charge and tangential electric field. The flow velocity increases with decreasing thickness of the soap film.
