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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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Contributor : Jérôme Duriez <>
Submitted on : Wednesday, February 26, 2020 - 10:40:20 AM
Last modification on : Monday, May 18, 2020 - 2:39:22 PM
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J. 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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