Evolving Sub-Grid Turbulence for Smoke Animation
| dc.contributor.author | Schechter, Hagit | en_US |
| dc.contributor.author | Bridson, Robert | en_US |
| dc.contributor.editor | Markus Gross and Doug James | en_US |
| dc.date.accessioned | 2014-01-29T07:36:55Z | |
| dc.date.available | 2014-01-29T07:36:55Z | |
| dc.date.issued | 2008 | en_US |
| dc.description.abstract | We introduce a simple turbulence model for smoke animation, qualitatively capturing the transport, diffusion, and spectral cascade of turbulent energy unresolved on a typical simulation grid. We track the mean kinetic energy per octave of turbulence in each grid cell, and a novel 'net rotation' variable for modeling the self-advection of turbulent eddies. These additions to a standard fluid solver drive a procedural post-process, layering plausible dynamically evolving turbulent details on top of the large-scale simulated motion. Finally, to make the most of the simulation grid before jumping to procedural sub-grid models, we propose a new multistep predictor to alleviate the nonphysical dissipation of angular momentum in standard graphics fluid solvers. | en_US |
| dc.description.seriesinformation | Eurographics/SIGGRAPH Symposium on Computer Animation | en_US |
| dc.identifier.isbn | 978-3-905674-10-1 | en_US |
| dc.identifier.issn | 1727-5288 | en_US |
| dc.identifier.uri | https://doi.org/10.2312/SCA/SCA08/001-007 | en_US |
| dc.publisher | The Eurographics Association | en_US |
| dc.subject | Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism | en_US |
| dc.title | Evolving Sub-Grid Turbulence for Smoke Animation | en_US |