Extending the Particle Finite Element Method for sediment transport simulation

The present work extends the capabilities of the Particle Finite Element Method (PFEM), which allows modeling of soil–fluid–structure interaction problems, to allow the modeling of sediment transport and scouring effects. This is accomplished by implementing scouring rules on an evolving scourable-i...

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Bibliographic Details
Published in:	Computer methods in applied mechanics and engineering Vol. 380; p. 113772
Main Authors:	Galano, Nicolás, Moreno-Casas, Patricio A., Abell, José A.
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 01-07-2021 Elsevier BV
Subjects:	Finite element analysis Finite element method Fluid-structure interaction Parameterization Particle Finite Element Method Scouring Sediment transport Shields criterion Soil structure Soils Soil–fluid–structure interaction Soil–fluid–structure interaction Fluid–structure interaction Particle Finite Element Method Scouring Shields criterion Sediment transport
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Summary:	The present work extends the capabilities of the Particle Finite Element Method (PFEM), which allows modeling of soil–fluid–structure interaction problems, to allow the modeling of sediment transport and scouring effects. This is accomplished by implementing scouring rules on an evolving scourable-interface, i.e. the interface surface between fluid and soil. The proposed method improves upon previous proposals by jointly capturing both the temporal and spatial scales of scouring evolution, as shown in the presented validation exercise, and also because its parametrization is conforms with commonplace engineering procedures for scouring prediction. The extension preserves desirable PFEM properties such as conservation of mass, mesh-size independence, and stability of the numerical solution of the PFEM equations and adds a negligible computational overhead to the PFEM implementation. •PFEM is extended to account for sediment transport using the Shields criterion.•This enables full soil–fluid–structure interaction simulation.•The parametrization is easily calibratable with common engineering information.•Results are validated with an experimental dataset with excellent agreement.
ISSN:	0045-7825 1879-2138
DOI:	10.1016/j.cma.2021.113772