EPJ Web Conf.
Volume 140, 2017Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media
|Number of page(s)||3|
|Section||Particle shape effects|
|Published online||30 June 2017|
Effect of grain shape on the jamming of two-dimensional silos
1 Universidad Tecnológica Nacional – FRBA, UDB Física, Mozart 2300, C1407IVT Buenos Aires, Argentina
2 Instituto de Física de Líquidos y Sistemas Biológicos (CONICET La Plata, UNLP), Calle 59 Nro 789, 1900 La Plata, Argentina
3 Dpto. Ingeniería Mecánica, Facultad Regional La Plata, Universidad Tecnológica Nacional, CONICET, Av. 60 Esq. 124, 1900 La Plata, Argentina
Published online: 30 June 2017
We present discrete element method simulations of the discharge of silos in two dimensions. We study the effect of the grain shape on the clogging of small apertures, considering regular polygons and disks of equal mass. In particular, we analyze the avalanche size distribution and the jamming probability for disks, triangles, squares, pentagons, hexagons and heptagons as a function of the aperture size. We show that the jamming probability presents a non-linear response as a function of the number of vertexes of the polygons.
© The Authors, published by EDP Sciences, 2017
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