Two-way Coupling of Fluids to Reduced Deformable Bodies

dc.contributor.authorLu, Wenlongen_US
dc.contributor.authorJin, Ningen_US
dc.contributor.authorFedkiw, Ronald P.en_US
dc.contributor.editorLadislav Kavan and Chris Wojtanen_US
dc.date.accessioned2016-07-10T12:51:44Z
dc.date.available2016-07-10T12:51:44Z
dc.date.issued2016
dc.description.abstractWe propose a fully monolithic two-way coupling framework that couples incompressible fluids to reduced deformable bodies. Notably, the resulting linear system matrix is both symmetric and positive-definite. Our method allows for the simulation of interesting free-surface as well as underwater phenomena, enabling the use of reduced deformable bodies as full-fledged simulation primitives alongside rigid bodies and deformable bodies. Momentum conservation is crucial to obtaining physically correct and realistic-looking motion in a fluid environment, and we achieve this by following previous work to describe reduced deformable bodies using both a rigid frame and a reduced space deformation component. Our approach partitions forces and impulses between the reduced space and the rigid frame of the reduced deformable bodies using a projection scheme that cleanly accounts for momentum losses in the reduced space via corrections in the rigid frame, resulting in a new theoretical formulation for the momentum-conserving reduced deformable body. We demonstrate that robust and stable contact, collision, articulation, and two-way coupling with fluids are all attainable in a straightforward way using this new formulation. Compared with fully deformable objects, our framework consumes less memory and scales better in large scenes, while still nicely approximating the deformation effects.en_US
dc.description.sectionheadersFlows
dc.description.seriesinformationEurographics/ ACM SIGGRAPH Symposium on Computer Animation
dc.identifier.doi10.2312/sca.20161224
dc.identifier.isbn978-3-03868-009-3
dc.identifier.issn1727-5288
dc.identifier.pages67-76
dc.identifier.urihttps://doi.org/10.2312/sca.20161224
dc.identifier.urihttps://diglib.eg.org:443/handle/10.2312/sca20161224
dc.publisherThe Eurographics Associationen_US
dc.subjectI.3.7 [Computer Graphics]
dc.subjectThree Dimensional Graphics and Realism
dc.subjectAnimaion
dc.titleTwo-way Coupling of Fluids to Reduced Deformable Bodiesen_US
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