A Positive-Definite Cut-Cell Method for Strong Two-Way Coupling Between Fluids and Deformable Bodies

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dc.contributor.authorZarifi, Omaren_US
dc.contributor.authorBatty, Christopheren_US
dc.contributor.editorBernhard Thomaszewski and KangKang Yin and Rahul Narainen_US
dc.date.accessioned2017-12-31T10:44:53Z
dc.date.available2017-12-31T10:44:53Z
dc.date.issued2017
dc.description.abstractWe present a new approach to simulation of two-way coupling between inviscid free surface fluids and deformable bodies that exhibits several notable advantages over previous techniques. By fully incorporating the dynamics of the solid into pressure projection, we simultaneously handle fluid incompressibility and solid elasticity and damping. Thanks to this strong coupling, our method does not su er from instability, even in very taxing scenarios. Furthermore, use of a cut-cell discretization methodology allows us to accurately apply proper free-slip boundary conditions at the exact solid-fluid interface. Consequently, our method is capable of correctly simulating inviscid tangential flow, devoid of grid artefacts or arti cial sticking. Lastly, we present an e cient algebraic transformation to convert the inde nite coupled pressure projection system into a positive-de nite form.We demonstrate the e cacy of our proposed method by simulating several interesting scenarios, including a light bath toy colliding with a collapsing column of water, liquid being dropped onto a deformable platform, and a partially liquid- lled deformable elastic sphere bouncing.en_US
dc.description.sectionheadersPapers II: Fluids
dc.description.seriesinformationEurographics/ ACM SIGGRAPH Symposium on Computer Animation
dc.identifier.doi10.1145/3099564.3099572
dc.identifier.isbn978-1-4503-5091-4
dc.identifier.issn1727-5288
dc.identifier.pagesOmar Zarifi and Christopher Batty-Computing methodologies Computer graphics; Physical simulation; fluid simulation, solid simulation, pressure projection
dc.identifier.urihttps://doi.org/10.1145/3099564.3099572
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1145/3099564-3099572
dc.publisherACMen_US
dc.subjectComputing methodologies Computer graphics
dc.subjectPhysical simulation
dc.subjectfluid simulation
dc.subjectsolid simulation
dc.subjectpressure projection
dc.titleA Positive-Definite Cut-Cell Method for Strong Two-Way Coupling Between Fluids and Deformable Bodiesen_US
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SCA 17: Eurographics/SIGGRAPH Symposium on Computer Animation