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DTSTAMP:20240214T070247Z
LOCATION:Meeting Room C4.11\, Level 4 (Convention Centre)
DTSTART;TZID=Australia/Melbourne:20231214T122500
DTEND;TZID=Australia/Melbourne:20231214T124000
UID:siggraphasia_SIGGRAPH Asia 2023_sess131_papers_363@linklings.com
SUMMARY:Power Plastics: A Hybrid Lagrangian/Eulerian Solver for Mesoscale 
 Inelastic Flows
DESCRIPTION:Technical Papers\n\nZiyin Qu (University of Pennsylvania, Univ
 ersity of California Los Angeles); Minchen Li (University of California Lo
 s Angeles, Carnegie Mellon University); Yin Yang (University of Utah); Che
 nfanfu Jiang (University of California Los Angeles); and Fernando de Goes 
 (Pixar Animation Studios)\n\nWe propose a novel hybrid Lagrangian/Eulerian
  method for simulating inelastic materials that generates high-quality par
 ticle distributions with strict volume control. At its core, our approach 
 integrates an updated Lagrangian time discretization of continuum mechanic
 s with the Power Particle-In-Cell geometric representation of continuum ma
 terials [Qu et al. 2022]. As a result, we represent material points as opt
 imized density kernels that precisely track the varying particle volumes b
 oth spatially and temporally. For efficient CFL-rate simulations, we impli
 citly time integrate the system with a non-linear Gauss-Seidel solver insp
 ired by X-PBD [Macklin et al. 2016], viewing Eulerian nodal velocities as 
 primal variables. We demonstrate the efficacy and versatility of our metho
 d with mesoscale (10-100k grains) simulations of bubbles, sands, liquid, a
 nd foams.\n\nRegistration Category: Full Access\n\nSession Chair: Neil A. 
 Dodgson (Victoria University of Wellington)
URL:https://asia.siggraph.org/2023/full-program?id=papers_363&sess=sess131
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