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dc.contributor.authorBarton, Michael
dc.contributor.authorKosinka, Jin
dc.contributor.authorCalo, Victor M.
dc.date.accessioned2015-08-03T12:34:48Z
dc.date.available2015-08-03T12:34:48Z
dc.date.issued2015-05
dc.identifier.issn15240703
dc.identifier.doi10.1016/j.gmod.2015.01.002
dc.identifier.urihttp://hdl.handle.net/10754/564166
dc.description.abstractWe study the problem of finding stretch-minimising stream surfaces in a divergence-free vector field. These surfaces are generated by motions of seed curves that propagate through the field in a stretch minimising manner, i.e., they move without stretching or shrinking, preserving the length of their arbitrary arc. In general fields, such curves may not exist. How-ever, the divergence-free constraint gives rise to these 'stretch-free' curves that are locally arc-length preserving when infinitesimally propagated. Several families of stretch-free curves are identified and used as initial guesses for stream surface generation. These surfaces are subsequently globally optimised to obtain the best stretch-minimising stream surfaces in a given divergence-free vector field. Our algorithm was tested on benchmark datasets, proving its applicability to incompressible fluid flow simulations, where our stretch-minimising stream surfaces realistically reflect the flow of a flexible univariate object. © 2015 Elsevier Inc. All rights reserved.
dc.publisherElsevier BV
dc.subjectArc-length preservation
dc.subjectDivergence-free vector field
dc.subjectFlow visualisation
dc.subjectStream surface
dc.titleStretch-minimising stream surfaces
dc.typeArticle
dc.contributor.departmentNumerical Porous Media SRI Center (NumPor)
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.identifier.journalGraphical Models
dc.contributor.institutionComputer Laboratory, University of Cambridge, 15 JJ Thomson Avenue, Cambridge, United Kingdom
kaust.personBarton, Michael
kaust.personCalo, Victor M.


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