球面調和関数－主成分分析による粒子形状生成と個別要素法への適用

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  • Particle Shape Generation using Spherical Harmonic Modeling and Principal Component Analysis and Application of the Discrete Element Method

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<p>In various fields, most raw materials are in a granular state: their bulk properties are therefore of interest. The discrete element method (DEM) is frequently used to determine these properties. As numerous particles can be simulated by DEM, and particle shapes affect bulk properties, effective modeling of realistic particle shapes is required. In this study, two types of DEM simulations were compared: one using real ore particle shape, and one using particle shape computed by spherical harmonic-based principal component analysis. We confirmed the latter to successfully reproduce the bulk properties (repose angle, porosity, and coordination number) of the former.</p>

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  • 粉体工学会誌

    粉体工学会誌 60 (3), 143-148, 2023-03-10

    一般社団法人 粉体工学会

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