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Rigid core particle: stabilization technique in large time step fluid simulation

Published: 30 July 2006 Publication History

Abstract

One of the most serious bottle-necks in fluid simulation occurs because the time step must be set to a small value to avoid numerical instability. To overcome this problem, this paper introduces a rigid core for the particles to maintain stability in particle-based fluid simulations. The fluid dynamics is calculated using the particle-based method with smoothed particle hydrodynamics (SPH) [Müller et al. 2003]. By using continuous collision detection (CCD) [Redon et al. 2001] among the rigid cores, unnatural compression and expansion can be prevented in large time step simulations. The calculation cost of CCD is negligible compared to that of small time step simulations, since CCD can be accelerated by a physics processing unit (PPU). Furthermore, this paper proposes a new real-time surface visualization technique that can also be assisted by a PPU. This technique generates large-scale high-resolution meshes compared to those generated by conventional lattice-based methods.

References

[1]
Müller, M. et al. "Particle-based fluid simulation for interactive applications", Proceedings of 2003 ACM SIGGRAPH Symposium on Computer Animation, pp. 154--159, 2003
[2]
Redon, Stephane et al. "CONTACT: Arbitrary in-between motions for collision detection", Proceedings of IEEE International Workshop on Robot-Human Communication, pp. 106--111, 2001.

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  • (2011)A level-set method for skinning animated particle dataProceedings of the 2011 ACM SIGGRAPH/Eurographics Symposium on Computer Animation10.1145/2019406.2019409(17-24)Online publication date: 5-Aug-2011

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cover image ACM Conferences
SIGGRAPH '06: ACM SIGGRAPH 2006 Research posters
July 2006
217 pages
ISBN:1595933646
DOI:10.1145/1179622
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Association for Computing Machinery

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Published: 30 July 2006

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Cited By

View all
  • (2011)A level-set method for skinning animated particle dataProceedings of the 2011 ACM SIGGRAPH/Eurographics Symposium on Computer Animation10.1145/2019406.2019409(17-24)Online publication date: 5-Aug-2011

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