Efficient numerical simulation of granular matter using the Bottom-To-Top Reconstruction method

Details Efficient numerical simulation of granular matter using the Bottom-To-Top Reconstruction method Efficient numerical simulation of granular matter using the Bottom-To-Top Reconstruction method

2006-11-24

arxiv.org/abs/cond-mat/0611596v1

In P. Walzel, S. Linz, Ch. Kruelle, and R. Grochowski (eds.) "Behavior of Granular Media", Shaker (Aachen, 2006), pp. 151-159

Physics

Condensed Matter

Soft Condensed Matter

8 pages, 15 figures

Scientific paper

The numerical simulation of granular systems of even moderate size is a challenging computational problem. In most investigations, either Molecular Dynamics or Event-driven Molecular Dynamics is applied. Here we show that in certain cases, mainly (but not exclusively) for static granular packings, the Bottom-to-top Reconstruction method allows for the efficient simulation of very large systems. We apply the method to heap formation, granular flow in a rotating cylinder and to structure formation in nano-powders. We also present an efficient implementation of the algorithm in C++, including a benchmark.

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