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dc.creatorGuerrero, J.es
dc.creatorGonzález García, Heliodoroes
dc.creatorGarcía García, Francisco Javieres
dc.date.accessioned2023-07-13T10:42:47Z
dc.date.available2023-07-13T10:42:47Z
dc.date.issued2012-05-12
dc.identifier.citationGuerrero, J., González García, H. y García García, F.J. (2012). Spatial modes of capillary jets, with application to surface stimulation. Journal of Fluid Mechanics, 702, 354-377. https://doi.org/10.1017/jfm.2012.182.
dc.identifier.issn0022-1120 (impreso)es
dc.identifier.issn1469-7645 (online)es
dc.identifier.urihttps://hdl.handle.net/11441/147945
dc.description.abstractSurface stimulation of any physical origin (electrohydrodynamic, thermocapillary, etc.) has the goal of generating localized perturbations on the free surface or the velocity field of a capillary jet. Among these perturbations, only the axisymmetric ones are determinant for the jet breakup. Often, the stimulation is weak enough for a linear model to be applicable. Then, the stimulation can be described by means of the Green functions for stresses, both normal and tangential to the interface, the calculations of which are, in addition, uncoupled from the hydrodynamic variables. If a harmonic forcing is applied, these Green functions are combinations of the spatial modes whose associated poles lie inside the appropriate integration contour of the complex wavenumber plane. This is the motivation for a comprehensive enumeration and description of the spatial modes, which has not been done up to now. Modes familiar from a temporal analysis, the dominant and subdominant capillary modes and the hydrodynamic modes, are present, along with modes specific to a spatial analysis. Most of the latter have already been mentioned in the literature for inviscid jets, but not analysed. A mode not previously found is reported. In addition, a description of the velocity field associated with each mode is provided, as a tool to understand their physical origin and behaviour. The relative importance of each mode in both normal- and tangential-stress stimulations is discussed. Finally, the well-known merging of poles below a critical jet velocity, leading to absolute instability, is analysed in the light of the modal description.es
dc.description.sponsorshipMinisterio de Ciencia y Tecnología FIS 2006-03645es
dc.description.sponsorshipMinisterio de Ciencia y Tecnología FIS 2011-25161es
dc.description.sponsorshipJunta de Andalucía FQM-421es
dc.formatapplication/pdfes
dc.format.extent24es
dc.language.isoenges
dc.publisherCambridge University Presses
dc.relation.ispartofJournal of Fluid Mechanics, 702, 354-377.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectCapillary Flowses
dc.subjectWaves/Free-surface Flowses
dc.titleSpatial modes of capillary jets, with application to surface stimulationes
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Física Aplicada Ies
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Física Aplicada IIIes
dc.relation.projectIDFIS 2006-03645es
dc.relation.projectIDFIS 2011-25161es
dc.relation.projectIDFQM-421es
dc.relation.publisherversionhttps://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/spatial-modes-of-capillary-jets-with-application-to-surface-stimulation/E791303B284AFB32A23C6D95F0303102es
dc.identifier.doi10.1017/jfm.2012.182es
dc.journaltitleJournal of Fluid Mechanicses
dc.publication.volumen702es
dc.publication.initialPage354es
dc.publication.endPage377es
dc.contributor.funderMinisterio de Ciencia Y Tecnología (MCYT). Españaes
dc.contributor.funderJunta de Andalucíaes

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