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Basis enrichment and solid–fluid coupling for model‐reduced fluid simulation
Author(s) -
Gerszewski Dan,
Kavan Ladislav,
Sloan PeterPike,
Bargteil Adam W.
Publication year - 2014
Publication title -
computer animation and virtual worlds
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.225
H-Index - 49
eISSN - 1546-427X
pISSN - 1546-4261
DOI - 10.1002/cav.1612
Subject(s) - coupling (piping) , computer science , basis (linear algebra) , eigenfunction , fluid dynamics , fluid coupling , computational fluid dynamics , vortex , laplace operator , rigid body , mechanics , mechanical engineering , physics , classical mechanics , mathematical analysis , geometry , eigenvalues and eigenvectors , mathematics , quantum mechanics , engineering
We present several enhancements to model‐reduced fluid simulation that allow improved simulation bases and two‐way solid–fluid coupling. Specifically, we present a basis enrichment scheme that allows us to combine data‐driven or artistically derived bases with more general analytic bases derived from Laplacian eigenfunctions. We handle two‐way solid–fluid coupling in a time‐splitting fashion—we alternately timestep the fluid and rigid body simulators, while taking into account the effects of the fluid on the rigid bodies and vice versa. We employ the vortex panel method to handle solid–fluid coupling and use dynamic pressure to compute the effect of the fluid on rigid bodies. Copyright © 2014 John Wiley & Sons, Ltd.