Turbulent wind fields for gaseous phenomena

11 years 9 months ago
Turbulent wind fields for gaseous phenomena
The realistic depiction of smoke, steam, mist and water reacting to a turbulent eld such as wind is an attractive and challenging problem. Its solution requires interlocking models for turbulent elds, gaseous ow, and realistic illumination. We present a model for turbulent wind ow having a deterministic component to specify large-scale behaviour, and a stochastic component to model turbulent small-scale behaviour. The small-scale component is generated using space-time Fourier synthesis. Turbulent wind elds can be superposed interactively to create subtle behaviour. An advection-di usion model is used to animate particle-based gaseous phenomena embedded in a wind eld, and we derive an e cient physically-based illumination model for rendering the system. Because the number of particles can be quite large, we present a clustering algorithm for e cient animation and rendering. CR Categories and Subject Descriptors: I.3.7 Computer Graphics]: Three-Dimensional Graphics and Realism I.3.3 Co...
Jos Stam, Eugene Fiume
Added 10 Aug 2010
Updated 10 Aug 2010
Type Conference
Year 1993
Authors Jos Stam, Eugene Fiume
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