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2008

Wavelet turbulence for fluid simulation

8 years 11 months ago
Wavelet turbulence for fluid simulation
We present a novel wavelet method for the simulation of fluids at high spatial resolution. The algorithm enables large- and smallscale detail to be edited separately, allowing high-resolution detail to be added as a post-processing step. Instead of solving the Navier-Stokes equations over a highly refined mesh, we use the wavelet decomposition of a low-resolution simulation to determine the location and energy characteristics of missing high-frequency components. We then synthesize these missing components using a novel incompressible turbulence function, and provide a method to maintain the temporal coherence of the resulting structures. There is no linear system to solve, so the method parallelizes trivially and requires only a few auxiliary arrays. The method guarantees that the new frequencies will not interfere with existing frequencies, allowing animators to set up a low resolution simulation quickly and later add details without changing the overall fluid motion. CR Categories:...
Theodore Kim, Nils Thürey, Doug L. James, Mar
Added 15 Dec 2010
Updated 15 Dec 2010
Type Journal
Year 2008
Where TOG
Authors Theodore Kim, Nils Thürey, Doug L. James, Markus H. Gross
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