Time-Dependent 2-D Vector Field Topology: An Approach Inspired by Lagrangian Coherent Structures

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dc.contributor.authorSadlo, F.en_US
dc.contributor.authorWeiskopf, D.en_US
dc.date.accessioned2015-02-23T09:36:17Z
dc.date.available2015-02-23T09:36:17Z
dc.date.issued2010en_US
dc.description.abstractThis paper presents an approach to a time-dependent variant of the concept of vector field topology for 2-D vector fields. Vector field topology is defined for steady vector fields and aims at discriminating the domain of a vector field into regions of qualitatively different behaviour. The presented approach represents a generalization for saddle-type critical points and their separatrices to unsteady vector fields based on generalized streak lines, with the classical vector field topology as its special case for steady vector fields. The concept is closely related to that of Lagrangian coherent structures obtained as ridges in the finite-time Lyapunov exponent field. The proposed approach is evaluated on both 2-D time-dependent synthetic and vector fields from computational fluid dynamics.en_US
dc.description.number1en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume29en_US
dc.identifier.doi10.1111/j.1467-8659.2009.01546.xen_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages88-100en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.2009.01546.xen_US
dc.publisherThe Eurographics Association and Blackwell Publishing Ltden_US
dc.titleTime-Dependent 2-D Vector Field Topology: An Approach Inspired by Lagrangian Coherent Structuresen_US
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