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Conference Papers Year : 2020

Level set representation on octree for granular material with arbitrary grain shape

Abstract

The Discrete Element Method (DEM) is an efficient tool for modelling granular materials, usually approaching them by spherical particles. Aiming for a better description of grain shapes, the present work first illustrates the Level Set (LS) description of arbitrary surfaces in a DEM extension coined as LS-DEM. LS-DEM logically results in a massive increase in the simulation storage requirements and evaluation time, which is here illustrated with reference to DEM for the ideal case of spherical particles. Then, Level Set Quadtree/Octree data structures are proposed as algorithm improvements to alleviate the computational costs of LS-DEM.
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Dates and versions

hal-02484591 , version 1 (26-02-2020)

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Jérôme Duriez, C Galusinski. Level set representation on octree for granular material with arbitrary grain shape. Proceedings Topical Problems of Fluid Mechanics 2020, Feb 2020, Prague, Czech Republic. ⟨10.14311/TPFM.2020.009⟩. ⟨hal-02484591⟩
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