MPM simulation of interacting fluids and solids

Yan, Xiao; Li, Chenfeng; Chen, Xiao-Song; Hu, Shi‐Min

doi:10.1111/cgf.13523

Cited by 22 publications

(11 citation statements)

References 51 publications

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“…The Material-Point Method (MPM) [Jiang et al 2016;Sulsky et al 1995] combines Lagrangian and Eulerian representations to capture solid-fluid coupling [Fei et al 2018;Stomakhin et al 2014;Yan et al 2018] and mixture [Gao et al 2018;Tampubolon et al 2017]. Fang et al [2020] proposed a free-slip treatment, but did not consider separation.…”

Section: Related Workmentioning

confidence: 99%

A Contact Proxy Splitting Method for Lagrangian Solid-Fluid Coupling

Xie¹,

Li²,

Yin³

et al. 2023

Preprint

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Fig. 1. Kick water. Our method accurately captures the complex interactions between the water, the multi-layer skirt, and the mannequin body without any interpenetration as the mannequin wearing the skirt kicks in a swimming pool and sends water flying.We present a robust and efficient method for simulating Lagrangian solidfluid coupling based on a new operator splitting strategy. We use variational formulations to approximate fluid properties and solid-fluid interactions, and introduce a unified two-way coupling formulation for SPH fluids and FEM solids using interior point barrier-based frictional contact. We split the resulting optimization problem into a fluid phase and a solid-coupling phase using a novel time-splitting approach with augmented contact proxies, and propose efficient custom linear solvers. Our technique accounts for fluids interaction with nonlinear hyperelastic objects of different geometries and codimensions, while maintaining an algorithmically guaranteed non-penetrating criterion. Comprehensive benchmarks and experiments demonstrate the efficacy of our method.

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Section: Related Workmentioning

confidence: 99%

A Contact Proxy Splitting Method for Lagrangian Solid-Fluid Coupling

Xie¹,

Li²,

Yin³

et al. 2023

Preprint

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“…Two‐way coupled simulation methods that combine rigid body contact handling with fluid dynamics have been heavily investigated in many contexts including Lattice–Boltzmann fluids [TIR06], height‐field fluids [TMFSG07, CM10, SBC*11], Lagrangian vortex methods [VHLL14], MPM fluids [YLCH18, HFG*18], Eulerian fluids [CMT04, GSLF05, BBB07, EWC*10] and Lagrangian fluids [MST*04, BTT09, AIA*12, MMCK14, TL16, KB17, BKWK19, GPB*19]. For a detailed discussion on the collision handling used by the mentioned simulation methods, we refer to Gissler et al.…”

Section: Related Workmentioning

confidence: 99%

Monolithic Friction and Contact Handling for Rigid Bodies and Fluids Using SPH

Probst

Teschner

2023

Computer Graphics Forum

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We propose a novel monolithic pure SPH formulation to simulate fluids strongly coupled with rigid bodies. This includes fluid incompressibility, fluid-rigid interface handling and rigid-rigid contact handling with a viable implicit particle-based dry friction formulation. The resulting global system is solved using a new accelerated solver implementation that outperforms existing fluid and coupled rigid-fluid simulation approaches. We compare results of our simulation method to analytical solutions, show performance evaluations of our solver and present a variety of new and challenging simulation scenarios.

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“…The aforementioned methods mainly cope with incompressible single-fluid simulation, and they do not work with multiple-fluid simulations that have multiple phases coexisting in a SPH particle. Recent particle-based multiplefluid models include the mixture-model multi-fluid SPH solvers [3], [4], phase-field based multi-fluid SPH solvers [1], [2] and multi-phase MPM solvers for miscible flow [21] and sand-water mixtures [22], [23]. Among those methods, the mixture model solvers can reproduce layered unmixing effect such as centrifugal separating, but are hardest to enforce incompressibility because neither mixture density is constant nor the velocity fields are divergence free.…”

Section: Related Workmentioning

confidence: 99%

Incompressibility Enforcement for Multiple-Fluid SPH Using Deformation Gradient

Ren

et al. 2022

IEEE Trans. Visual. Comput. Graphics

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To maintain incompressibility in SPH fluid simulations is important for visual plausibility. However, it remains an outstanding challenge to enforce incompressibility in such recent multiple-fluid simulators as the mixture-model SPH framework. To tackle this problem, we propose a novel incompressible SPH solver, where the compressibility of fluid is directly measured by the deformation gradient. By disconnecting the incompressibility of fluid from the conditions of constant density and divergence-free velocity, the new incompressible SPH solver is applicable to both single-and multiple-fluid simulations. The proposed algorithm can be readily integrated into existing incompressible SPH frameworks developed for single-fluid, and is fully parallelizable on GPU. Applied to multiple-fluid simulations, the new incompressible SPH scheme significantly improves the visual effects of the mixture-model simulation, and it also allows exploitation for artistic controlling.

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MPM simulation of interacting fluids and solids

Cited by 22 publications

References 51 publications

A Contact Proxy Splitting Method for Lagrangian Solid-Fluid Coupling

A Contact Proxy Splitting Method for Lagrangian Solid-Fluid Coupling

Monolithic Friction and Contact Handling for Rigid Bodies and Fluids Using SPH

Incompressibility Enforcement for Multiple-Fluid SPH Using Deformation Gradient

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