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dc.contributor.authorMisztal, Marek Krzysztof
dc.contributor.authorErleben, Kenny
dc.contributor.authorBargteil, Adam
dc.contributor.authorFursund, Jens
dc.contributor.authorChristensen, Brian Bunch
dc.contributor.authorBærentzen, Jakob Andreas
dc.contributor.authorBridson, Robert
dc.date.accessioned2019-09-11T15:49:04Z
dc.date.available2019-09-11T15:49:04Z
dc.date.issued2013-07-03
dc.description.abstractIn this paper, we present a method for animating multiphase flow of immiscible fluids using unstructured moving meshes. Our underlying discretization is an unstructured tetrahedral mesh, the deformable simplicial complex (DSC), that moves with the flow in a Lagrangian manner. Mesh optimization operations improve element quality and avoid element inversion. In the context of multiphase flow, we guarantee that every element is occupied by a single fluid and, consequently, the interface between fluids is represented by a set of faces in the simplicial complex. This approach ensures that the underlying discretization matches the physics and avoids the additional book-keeping required in grid-based methods where multiple fluids may occupy the same cell. Our Lagrangian approach naturally leads us to adopt a finite element approach to simulation, in contrast to the finite volume approaches adopted by a majority of fluid simulation techniques that use tetrahedral meshes. We characterize fluid simulation as an optimization problem allowing for full coupling of the pressure and velocity fields and the incorporation of a second-order surface energy. We introduce a preconditioner based on the diagonal Schur complement and solve our optimization on the GPU. We provide the results of parameter studies as well as a performance analysis of our method, together with suggestions for performance optimization.en_US
dc.description.sponsorshipThis work was funded by a grant from the Danish Agency for Science, Technology and Innovation and partially by NSF grants IIS-1249756 and CNS-0855167.en_US
dc.description.urihttps://ieeexplore.ieee.org/document/6552824en_US
dc.format.extent14 pagesen_US
dc.genrejournal articles preprintsen_US
dc.identifierdoi:10.13016/m2pqkl-ckji
dc.identifier.citationMarek K. Misztal, et.al, Multiphase Flow of Immiscible Fluids on Unstructured Moving Meshes, IEEE Transactions on Visualization and Computer Graphics, Volume: 20 , Issue: 1 , Jan. 2014, DOI: 10.1109/TVCG.2013.97en_US
dc.identifier.urihttps://doi.org/10.1109/TVCG.2013.97
dc.identifier.urihttp://hdl.handle.net/11603/14540
dc.language.isoen_USen_US
dc.publisherIEEEen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Computer Science and Electrical Engineering Department Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rights© 2014 IEEE
dc.subjectfluid animationen_US
dc.subjectphysics-based modelingen_US
dc.subjectoptimization methodsen_US
dc.subjectUMBC Computer Animation Laben_US
dc.titleMultiphase Flow of Immiscible Fluids on Unstructured Moving Meshesen_US
dc.typeTexten_US


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