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16 April 2024 |
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Article overview
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Primal-Dual Optimization for Fluids | | Tiffany Inglis
; Marie-Lena Eckert
; James Gregson
; Nils Thuerey
; | | Date: |
11 Nov 2016 | | Abstract: | We apply a novel optimization scheme from the image processing and machine
learning areas, a fast Primal-Dual method, to achieve controllable and
realistic fluid simulations. While our method is generally applicable to many
problems in fluid simulations, we focus on the two topics of fluid guiding and
separating solid-wall boundary conditions. Each problem is posed as an
optimization problem and solved using our method, which contains acceleration
schemes tailored to each problem. In fluid guiding, we are interested in
partially guiding fluid motion to exert control while preserving fluid
characteristics. With our method, we achieve explicit control over both
large-scale motions and small-scale details which is valuable for many
applications, such as level-of-detail adjustment (after running the coarse
simulation), spatially varying guiding strength, domain modification, and
resimulation with different fluid parameters. For the separating solid-wall
boundary conditions problem, our method effectively eliminates unrealistic
artifacts of fluid crawling up solid walls and sticking to ceilings, requiring
few changes to existing implementations. We demonstrate the fast convergence of
our Primal-Dual method with a variety of test cases for both model problems. | | Source: | arXiv, 1611.3677 | | Services: | Forum | Review | PDF | Favorites | |
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