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dc.contributor.authorPérez Muñuzuri, Vicente
dc.contributor.authorHuhn, Florian
dc.date.accessioned2020-04-22T12:17:42Z
dc.date.available2020-04-22T12:17:42Z
dc.date.issued2013
dc.identifier.citationPérez-Muñuzuri, V. and Huhn, F. (2013). Path-integrated Lagrangian measures from the velocity gradient tensor, Nonlin. "Processes Geophys", 20, 987–991
dc.identifier.issn1023-5809
dc.identifier.urihttp://hdl.handle.net/10347/21636
dc.description.abstractSpatial maps of the finite-time Lyapunov exponent (FTLE) have been used extensively to study LCS in two-dimensional dynamical systems, in particular with application to transport in unsteady fluid flows. We use the time-periodic double-gyre model to compare spatial fields of FTLE and the path-integrated Eulerian Okubo–Weiss parameter (OW). Both fields correlate strongly, and by solving the dynamics of the deformation gradient tensor, a theoretical relationship between both magnitudes has been obtained. While for long integration times more and more FTLE ridges appear that do not seem to coincide with the stable manifold, ridges in the field of path-integrated OW represent fewer additional structures.
dc.description.sponsorshipThis work was supported in part by the Ministerio de Educación y Ciencia under research grant no. FIS2010-21023 and ICMAT Severo Ochoa project SEV-2011- 0087
dc.language.isoeng
dc.publisherCopernicus Publications
dc.rights© Author(s) 2013. This work is distributed under the Creative Commons Attribution 3.0 License
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.titlePath-integrated Lagrangian measures from the velocity gradient tensor
dc.typejournal article
dc.identifier.doi10.5194/npg-20-987-2013
dc.relation.publisherversionhttps://doi.org/10.5194/npg-20-987-2013
dc.type.hasVersionVoR
dc.identifier.essn1607-7946 
dc.rights.accessRightsopen access
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Física de Partículas
dc.description.peerreviewedSI


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