Oscillations and traveling-wave-induced streaming of charge monolayers on insulating liquid interfaces

7 November 2016

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

p. 233-241
https://doi.org/10.1109/ceidp.1976.7733934

Abstract

The convection of charge in highly insulating liquids, typically hydrocarbon fuels, is of considerable importance because of the associated generation of high intensity electric fields.¹ It is generally accepted that a charge is often generated in two-phase liquid transport. It is not so widely recognized that the transport of this charge at interfaces can be strongly influenced by fluid convection induced by the charge itself. Charge transport from liquid to air across an interface is typically via electro-hydrodynamic instability. Previous studies² have shown that at incipient instability, monolayers of charge should, in fact, behave as though the interface were perfectly conducting. This seeming contradiction of the insulating nature of the liquid results because the incipient instability has zero frequency, and the monolayer simply adjusts to distortions of the interface so as to cancel the electric shear stress and hence to cancel the tangential electric field.

Keywords

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