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Instability in a non-ohmic/ohmic fluid interface under a perpendicular electric field and unipolar injection
2002
Physics of Fluids
We set the equations for the linear electrohydrodynamic instability of an interface between two fluids, subjected to a perpendicular field and a unipolar charge injection. One of the fluids is modeled as being in non-ohmic regime ͑insulating͒, whereas the other is ohmic. A new interfacial instability mechanism is described, which may account for the Rose-window instability. The equations are analytically solved in the limit of long wavelength and neglecting the fluid motion. We show that this
doi:10.1063/1.1488146
fatcat:ji6mwip4nvhy5hanzhlvu4li2a