Multiphase SPH simulation for interactive fluids and solids

Yan, X., Jiang, Y.-T., Li, C.-F., Martin, Ralph Robert and Hu, Shi-Min ORCID: https://orcid.org/0000-0001-7507-6542 2016. Multiphase SPH simulation for interactive fluids and solids. ACM Transactions on Graphics 35 (4) , 79. 10.1145/2897824.2925897

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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.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Computer Science & Informatics
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Publisher:	Association for Computing Machinery
ISSN:	0730-0301
Funders:	Engineering and Physical Sciences Research Council
Date of First Compliant Deposit:	25 April 2016
Date of Acceptance:	18 April 2016
Last Modified:	05 Dec 2024 19:30
URI:	https://orca.cardiff.ac.uk/id/eprint/89890

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