Low and high Reynolds number flows inside Taylor cones

Liquid motions inside Taylor cones exhibit interesting features which are not well understood yet. In addition to the flow rate injected through the electrified needle to which the conical meniscus is anchored, the action of the tangential electrical stress on the cone surface induces a recirculatin...

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Autores: Barrero Ripoll, Antonio, Gañán-Calvo, Alfonso M., Dávila Martín, Javier, Palacio, A., Gómez-González, Emilio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1998
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/89371
Acceso en línea:https://hdl.handle.net/11441/89371
https://doi.org/10.1103/PhysRevE.58.7309
Access Level:acceso abierto
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repository_id_str
spelling Low and high Reynolds number flows inside Taylor conesBarrero Ripoll, AntonioGañán-Calvo, Alfonso M.Dávila Martín, JavierPalacio, A.Gómez-González, EmilioLiquid motions inside Taylor cones exhibit interesting features which are not well understood yet. In addition to the flow rate injected through the electrified needle to which the conical meniscus is anchored, the action of the tangential electrical stress on the cone surface induces a recirculating meridional motion, towards the apex along the generatrix and away from it along the axis. Sometimes, a vigorous swirl is observed. The characteristic value of the liquid velocity is found to be highly dependent on both the electrical conductivity and the viscosity of the liquid, so that the Reynolds number of the liquid flow varies from very small values (creeping flow) for the case of highly conducting and viscous liquids to relatively large values for liquids with sufficiently low values of the liquid conductivity and viscosity. Theoretical conical flows for low and high values of the Reynolds number show qualitatively good agreement with photographs of real flows inside Taylor cones. In particular, the existence of a vigorous swirl which is observed in the electrospraying of paraffins and other poorly conducting and low viscosity liquids can be explained as bifurcation of a primarily nonswirling meridional flow when the Reynolds number reaches a critical value.Comisión Interministerial de Ciencia y Tecnología PB96-0679-C02-02American Physical SocietyIngeniería Aeroespacial y Mecánica de FluidosFísica Aplicada III1998info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/89371https://doi.org/10.1103/PhysRevE.58.7309reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 58 (6), 7309-7314.PB96-0679-C02-02https://journals.aps.org/pre/abstract/10.1103/PhysRevE.58.7309info:eu-repo/semantics/openAccessoai:idus.us.es:11441/893712026-06-17T12:51:07Z
dc.title.none.fl_str_mv Low and high Reynolds number flows inside Taylor cones
title Low and high Reynolds number flows inside Taylor cones
spellingShingle Low and high Reynolds number flows inside Taylor cones
Barrero Ripoll, Antonio
title_short Low and high Reynolds number flows inside Taylor cones
title_full Low and high Reynolds number flows inside Taylor cones
title_fullStr Low and high Reynolds number flows inside Taylor cones
title_full_unstemmed Low and high Reynolds number flows inside Taylor cones
title_sort Low and high Reynolds number flows inside Taylor cones
dc.creator.none.fl_str_mv Barrero Ripoll, Antonio
Gañán-Calvo, Alfonso M.
Dávila Martín, Javier
Palacio, A.
Gómez-González, Emilio
author Barrero Ripoll, Antonio
author_facet Barrero Ripoll, Antonio
Gañán-Calvo, Alfonso M.
Dávila Martín, Javier
Palacio, A.
Gómez-González, Emilio
author_role author
author2 Gañán-Calvo, Alfonso M.
Dávila Martín, Javier
Palacio, A.
Gómez-González, Emilio
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería Aeroespacial y Mecánica de Fluidos
Física Aplicada III
description Liquid motions inside Taylor cones exhibit interesting features which are not well understood yet. In addition to the flow rate injected through the electrified needle to which the conical meniscus is anchored, the action of the tangential electrical stress on the cone surface induces a recirculating meridional motion, towards the apex along the generatrix and away from it along the axis. Sometimes, a vigorous swirl is observed. The characteristic value of the liquid velocity is found to be highly dependent on both the electrical conductivity and the viscosity of the liquid, so that the Reynolds number of the liquid flow varies from very small values (creeping flow) for the case of highly conducting and viscous liquids to relatively large values for liquids with sufficiently low values of the liquid conductivity and viscosity. Theoretical conical flows for low and high values of the Reynolds number show qualitatively good agreement with photographs of real flows inside Taylor cones. In particular, the existence of a vigorous swirl which is observed in the electrospraying of paraffins and other poorly conducting and low viscosity liquids can be explained as bifurcation of a primarily nonswirling meridional flow when the Reynolds number reaches a critical value.
publishDate 1998
dc.date.none.fl_str_mv 1998
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/89371
https://doi.org/10.1103/PhysRevE.58.7309
url https://hdl.handle.net/11441/89371
https://doi.org/10.1103/PhysRevE.58.7309
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 58 (6), 7309-7314.
PB96-0679-C02-02
https://journals.aps.org/pre/abstract/10.1103/PhysRevE.58.7309
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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