Two-way Coupling of Fluids to Reduced Deformable Bodies
| dc.contributor.author | Lu, Wenlong | en_US |
| dc.contributor.author | Jin, Ning | en_US |
| dc.contributor.author | Fedkiw, Ronald P. | en_US |
| dc.contributor.editor | Ladislav Kavan and Chris Wojtan | en_US |
| dc.date.accessioned | 2016-07-10T12:51:44Z | |
| dc.date.available | 2016-07-10T12:51:44Z | |
| dc.date.issued | 2016 | |
| dc.description.abstract | We 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.sectionheaders | Flows | |
| dc.description.seriesinformation | Eurographics/ ACM SIGGRAPH Symposium on Computer Animation | |
| dc.identifier.doi | 10.2312/sca.20161224 | |
| dc.identifier.isbn | 978-3-03868-009-3 | |
| dc.identifier.issn | 1727-5288 | |
| dc.identifier.pages | 67-76 | |
| dc.identifier.uri | https://doi.org/10.2312/sca.20161224 | |
| dc.identifier.uri | https://diglib.eg.org:443/handle/10.2312/sca20161224 | |
| dc.publisher | The Eurographics Association | en_US |
| dc.subject | I.3.7 [Computer Graphics] | |
| dc.subject | Three Dimensional Graphics and Realism | |
| dc.subject | Animaion | |
| dc.title | Two-way Coupling of Fluids to Reduced Deformable Bodies | en_US |