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Fourier signature of filamentary vorticity structures in two-dimensional turbulence

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dc.affiliation.dptoUC3M. Departamento de Físicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Física de Plasmases
dc.contributor.authorReynolds Barredo, José Miguel
dc.contributor.authorNewman, D.E.
dc.contributor.authorTerry, P. W.
dc.contributor.authorSánchez Fernández, Luis Raúl
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2022-09-21T08:33:19Z
dc.date.available2022-09-21T08:33:19Z
dc.date.issued2016-08
dc.description.abstractIt is shown that coherent regions of isotropic two-dimensional (2D) turbulence can be clearly identified in the phase part of the Fourier spectrum. Certain spectral phase events are particularly prominent, and are much stronger in the range of wave numbers corresponding to the dissipation range. It is shown that these events are associated with spatially localized filamentary structures in the 2D vorticity field that historically have been related to the intermittency of dissipation. The identified phase signature provides a particularly transparent diagnostic of the temporal evolution of the coherent coupling of disparate scales in anisostropic intermittent dissipative events. These results open the possibility of using the phase of the Fourier transform as a new turbulence diagnostic that identifies and quantitatively characterizes details pertaining to dissipative events.en
dc.description.sponsorshipResearch supported in part by the Spanish national projects No. ENE2009-12213-C03-03, ENE2012-33219, UNC313-4E-2361 and ENE2012-31753 and the US DOE Office of Science Grants No. DE-FG02-04ER54741 and DE-FG02-89ER53291. Simulations run at the Uranus supercomputer cluster at Universidad Carlos III de Madrid.en
dc.format.extent6
dc.identifier.bibliographicCitationReynolds-Barredo, J. M., Newman, D. E., Terry, P. W., & Sanchez, R. (2016). Fourier signature of filamentary vorticity structures in two-dimensional turbulence. In EPL (Europhysics Letters), 115(3), 34002-34008en
dc.identifier.doihttps://doi.org/10.1209/0295-5075/115/34002
dc.identifier.issn0295-5075
dc.identifier.publicationfirstpage34002
dc.identifier.publicationissue3
dc.identifier.publicationlastpage34008
dc.identifier.publicationtitleEPLen
dc.identifier.publicationvolume115
dc.identifier.urihttps://hdl.handle.net/10016/35751
dc.identifier.uxxiAR/0000018298
dc.language.isoengen
dc.publisherIOP Publishingen
dc.relation.projectIDGobierno de España. ENE2009-12213-C03-03es
dc.relation.projectIDGobierno de España. ENE2012-33219es
dc.relation.projectIDGobierno de España. ENE2012-31753es
dc.relation.projectIDIndefinido. UNC313-4E-2361es
dc.relation.publisherversionhttps://iopscience.iop.org/article/10.1209/0295-5075/115/34002en
dc.rights© EPLA, 2016en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaFísicaes
dc.subject.otherDynamicsen
dc.titleFourier signature of filamentary vorticity structures in two-dimensional turbulenceen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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