Complex material flow problems: a multi-scale model hierarchy and particle methods
Complex material flow problems: a multi-scale model hierarchy and particle methods
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DOI：
10.1007/s10665-014-9767-5
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发表时间：
2015-06
影响因子：
1.3
通讯作者：
S. Göttlich;A. Klar;S. Tiwari
中科院分区：
文献类型：
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作者：
S. Göttlich;A. Klar;S. Tiwari
物质流模拟对多尺度模型的需求越来越大。一方面，宏观流动模型用于具有大量零件的大规模模拟。另一方面，需要微观模型来描述生产过程的细节。在本文中，我们提出了物质流问题的模型层次结构，从详细的微观、离散元方法类型、模型到使用具有非局部相互作用项的标量守恒定律的宏观模型。数值模拟在层次结构的各个级别上进行，并且针对多个测试用例将结果进行相互比较。
Material flow simulation is in increasing need of multi-scale models. On the one hand, macroscopic flow models are used for large-scale simulations with a large number of parts. On the other hand, microscopic models are needed to describe the details of the production process. In this paper, we present a hierarchy of models for material flow problems ranging from detailed microscopic, discrete element method type, models to macroscopic models using scalar conservation laws with non-local interaction terms. Numerical simulations are presented at all levels of the hierarchy, and the results are compared to each other for several test cases.