Lees-Edwards boundary conditions for the multi-sphere discrete element method
نویسندگان
چکیده
A consistent implementation of Lees-Edwards boundary conditions is proposed for the Multi-Sphere Discrete Element Method, which can mitigate various unphysical effects at bulk and micro-structural levels. These include non-linear velocity profiles inhomogeneous particle distributions, result in significant errors with respect to pressure granular temperature. In order allow a fair assessment different implementations, novel compound sphere shape devised comparison reliable benchmark data generated from systems spherical particles. The Method utilised examine two implementations these conditions. commonly used Naive approach results aforementioned effects, are numerical artefacts causing deviations up one magnitude. Meanwhile, fulfils fundamental requirements produces excellent agreement results, as well available literature. Comparing general principles developed implementing Method.
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ژورنال
عنوان ژورنال: Powder Technology
سال: 2021
ISSN: ['0032-5910', '1873-328X']
DOI: https://doi.org/10.1016/j.powtec.2021.05.025