dc.creator | Marley, Becerra | es |
dc.creator | Frid, Henrik | es |
dc.creator | Vázquez González, Pedro Ángel | es |
dc.date.accessioned | 2018-07-27T10:04:07Z | |
dc.date.available | 2018-07-27T10:04:07Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Marley, B., Frid, H. y Vázquez González, P.Á. (2017). Self-consistent modeling of laminar electrohydrodynamic plumes from ultrasharp needles in cyclohexane. Physics of Fluids, 29, 123605-1-123605-11. | |
dc.identifier.issn | 1070-6631 | es |
dc.identifier.uri | https://hdl.handle.net/11441/77661 | |
dc.description.abstract | This paper presents a self-consistent model of electrohydrodynamic (EHD) laminar plumes produced by electron injection
from ultra-sharp needle tips in cyclohexane. Since the density of electrons injected into the liquid is well described by the
Fowler-Nordheim field emission theory, the injection law is not assumed. Furthermore, the generation of electrons in
cyclohexane and their conversion into negative ions is included in the analysis. Detailed steady-state characteristics of EHD
plumes under weak injection and space-charge limited injection are studied. It is found that the plume characteristics far from
both electrodes and under weak injection can be accurately described with an asymptotic simplified solution proposed by
Vazquez et al. Physics of Fluids 12, 2809 (2000) when the correct longitudinal electric field distribution and liquid velocity
radial profile are used as input. However, this asymptotic solution deviates from the self-consistently calculated plume
parameters under space-charge limited injection since it neglects the radial variations of the electric field produced by a highdensity
charged core. In addition, no significant differences in the model estimates of the plume are found when the
simulations are obtained either with the Finite Element Method or with a diffusion-free particle method. It is shown that the
model also enables the calculation of the current-voltage (IV) characteristic of EHD laminar plumes produced by electron
field emission, with good agreement with measured values reported in the literature. | es |
dc.description.sponsorship | Ministerio de Economía y Competitividad FIS2014-54539-P. | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | AIP Publishing | es |
dc.relation.ispartof | Physics of Fluids, 29, 123605-1-123605-11. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Electrohydrodynamics (EHD) | es |
dc.subject | EHD plumes | es |
dc.subject | Liquid high-voltage insulation | es |
dc.title | Self-consistent modeling of laminar electrohydrodynamic plumes from ultrasharp needles in cyclohexane | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Aplicada III | es |
dc.relation.projectID | FIS2014-54539-P. | es |
dc.relation.publisherversion | https://aip.scitation.org/doi/abs/10.1063/1.5001000 | es |
dc.identifier.doi | 10.1063/1.5001000 | es |
idus.format.extent | 12 p. | es |
dc.journaltitle | Physics of Fluids | es |
dc.publication.volumen | 29 | es |
dc.publication.initialPage | 123605-1 | es |
dc.publication.endPage | 123605-11 | es |
dc.contributor.funder | Ministerio de Economía y Competitividad (MINECO). España | |