Vortex Merge Graphs in Two-dimensional Unsteady Flow Fields

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dc.contributor.authorKasten, Jensen_US
dc.contributor.authorHotz, Ingriden_US
dc.contributor.authorNoack, Bernden_US
dc.contributor.authorHege, Hans-Christianen_US
dc.contributor.editorMiriah Meyer and Tino Weinkaufsen_US
dc.date.accessioned2013-11-08T10:22:25Z
dc.date.available2013-11-08T10:22:25Z
dc.date.issued2012en_US
dc.description.abstractAmong the various existing vortex definitions, there is one class that relies on extremal structures of derived scalar fields. These are, e.g., vorticity,λ<sub>2</sub>, or the acceleration magnitude. This paper proposes a method to identify and track extremal-based vortex structures in 2D time-dependent flows. It is based on combinatorial scalar field topology. In contrast to previous methods, merge events are explicitly handled and represented in the resulting graph. An abstract representation of this vortex merge graph serves as basis for the comparison of the different scalar identifiers. The method is applied to numerically simulated flows of a mixing layer and a planar jet.en_US
dc.description.seriesinformationEuroVis - Short Papersen_US
dc.identifier.isbn978-3-905673-91-3en_US
dc.identifier.urihttps://doi.org/10.2312/PE/EuroVisShort/EuroVisShort2012/001-005en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.8 [Computing Methodologies]: Computer Graphics-Applications J.2 [Computer Applications]: Physical Sciences and Engineering-Physicsen_US
dc.titleVortex Merge Graphs in Two-dimensional Unsteady Flow Fieldsen_US
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