Animating fluid sediment mixture in particle-laden flows

In this paper, we present a mixed explicit and semi-implicit Material Point Method for simulating particle-laden flows. We develop a Multigrid Preconditioned fluid solver for the Locally Averaged Navier Stokes equation. This is discretized purely on a semi-staggered standard MPM grid. Sedimentation...

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Bibliographic Details
Published in:ACM transactions on graphics 2018-08, Vol.37 (4), p.1-11
Main Authors: Gao, Ming, Pradhana, Andre, Han, Xuchen, Guo, Qi, Kot, Grant, Sifakis, Eftychios, Jiang, Chenfanfu
Format: Article
Language:English
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Summary:In this paper, we present a mixed explicit and semi-implicit Material Point Method for simulating particle-laden flows. We develop a Multigrid Preconditioned fluid solver for the Locally Averaged Navier Stokes equation. This is discretized purely on a semi-staggered standard MPM grid. Sedimentation is modeled with the Drucker-Prager elastoplasticity flow rule, enhanced by a novel particle density estimation method for converting particles between representations of either continuum or discrete points. Fluid and sediment are two-way coupled through a momentum exchange force that can be easily resolved with two MPM background grids. We present various results to demonstrate the efficacy of our method.
ISSN:0730-0301
1557-7368
DOI:10.1145/3197517.3201309