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Cellular automata model of gravity-driven granular flows

机译:重力驱动颗粒流的元胞自动机模型

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摘要

A cellular automata model is used to simulate a variety of granular chute flows. The model is tested against several case studies: flow down a chute, flow past an obstacle, chute flow in which complex, counter-rotating vortices result in streamwise surface stripes and flow near a boundary. The model successfully reproduces experimental observations in all of these cases. These results lead us to propose that simple, rule-based, models such as this can improve our detailed understanding of dynamics and flow within an opaque granular bed.
机译:元胞自动机模型用于模拟各种颗粒溜槽流量。该模型已针对多个案例研究进行了测试:沿着斜槽流,越过障碍物流,斜槽流,其中复杂的反向旋转涡流导致沿流方向形成表面条纹并在边界附近流动。该模型在所有这些情况下均成功地再现了实验观察结果。这些结果使我们提出了这样一个简单的,基于规则的模型,可以提高我们对不透明颗粒床内动力学和流动的详细理解。

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