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Instability of an interface between air and a low conducting liquid subjected to charge injection

 

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dc.creator Chicón, Rafael es
dc.creator Pérez Izquierdo, Alberto Tomás es
dc.date.accessioned 2017-06-28T12:02:57Z
dc.date.available 2017-06-28T12:02:57Z
dc.date.issued 2006
dc.identifier.issn 1070-6631 es
dc.identifier.uri http://hdl.handle.net/11441/61568
dc.description.abstract We study the linear stability of an interface between air and a low conducting liquid in the presence of unipolar injection of charge. As a consequence of charge injection, a volume charge density builds up in the air gap and a surface charge density on the interface. Above a certain voltage threshold the electrical stresses may destabilize the interface, giving rise to a characteristic cell pattern known as rose-window instability. Contrary to what occurs in the classical volume electrohydrodynamic instability in insulating liquids, the typical cell size is several times larger than the liquid depth. We analyze the linear stability through the usual procedure of decomposing an arbitrary perturbation into normal modes. The resulting homogeneous linear system of ordinary differential equations is solved using a commercial software package. Finally, an analytical method is developed that provides a solution valid in the limit of small wavenumbers es
dc.description.sponsorship Ministerio de Ciencia y Tecnología BFM2003-01739 es
dc.format application/pdf es
dc.language.iso eng es
dc.publisher American Institute of Physics es
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 Internacional *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject Differential equations es
dc.subject Electrohydrodynamics es
dc.subject Flow instability es
dc.subject Pattern formation es
dc.subject Two-phase flow es
dc.title Instability of an interface between air and a low conducting liquid subjected to charge injection es
dc.type info:eu-repo/semantics/article es
dc.type.version info:eu-repo/semantics/publishedVersion es
dc.rights.accessrights info:eu-repo/semantics/openAccess es
dc.contributor.affiliation Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo es
dc.relation.projectID BFM2003-01739 es
dc.relation.publisherversion 10.1063/1.2363219 es
dc.identifier.doi 10.1063/1.2363219 es
idus.format.extent 11 p. es
dc.journaltitle Physics of Fluids es
dc.publication.volumen 18 es
dc.publication.issue 10 es
dc.publication.initialPage 104108 es
dc.contributor.funder Ministerio de Ciencia y Tecnología (MCYT). España
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