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Multiphase SPH simulation for interactive fluids and solids

Xiao Yan, Yun-Tao Jiang, Chenfeng Li Orcid Logo, Ralph R. Martin, Shi-Min Hu

ACM Transactions on Graphics, Volume: 35, Issue: 4

Swansea University Author: Chenfeng Li Orcid Logo

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DOI (Published version): 10.1145/2897824.2925897

Abstract

This work extends existing multiphase-fluid SPH frameworks to cover solid phases, including deformable bodies and granular materials. In our extended multiphase SPH framework, the distribution and shapes of all phases, both fluids and solids, are uniformly represented by their volume fraction functi...

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Published in: ACM Transactions on Graphics
ISSN: 0730-0301
Published: 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa29292
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Abstract: This work extends existing multiphase-fluid SPH frameworks to cover solid phases, including deformable bodies and granular materials. In our extended multiphase SPH framework, the distribution and shapes of all phases, both fluids and solids, are uniformly represented by their volume fraction functions. The dynamics of the multiphase system is governed by conservation of mass and momentum within different phases. The behavior of individual phases and the interactions between them are represented by corresponding constitutive laws, which are functions of the volume fraction fields and the velocity fields. Our generalized multiphase SPH framework does not require separate equations for specific phases or tedious interface tracking. As the distribution, shape and motion of each phase is represented and resolved in the same way, the proposed approach is robust, efficient and easy to implement. Various simulation results are presented to demonstrate the capabilities of our new multiphase SPH framework, including deformable bodies, granular materials, interaction between multiple fluids and deformable solids, flow in porous media, and dissolution of deformable solids.
Keywords: Real time simulation, physically based modelling, fluids, solids
College: Faculty of Science and Engineering
Issue: 4

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