Simulations of granular media

机译：颗粒介质的模拟

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I will discuss how a granular medium can be modelled by a packing of elastic spheres and simulated via Molecular Dyanmics. Dissipation of energy and shear friction at collisions are included. The onset of fluidization can be determined and is in good agreement with experiments. On a vibrating plate the formation of convection cells due to walls or amplitude modulations can be observed. Density and velocity profiles on conveyor belts or inclined chutes can be measured and the influence of an obstacle visualized. We mention interesting rheological effects for the flow through a pipe or out of containers.

机译：我将讨论如何通过填充弹性球体来建模粒状介质，以及如何通过Molecular Dyanmics进行模拟。包括碰撞时的能量耗散和剪切摩擦。可以确定流化的开始并且与实验非常吻合。在振动板上，可以观察到由于壁或振幅调制而形成的对流单元。可以测量传送带或倾斜溜槽上的密度和速度分布，并可视化障碍物的影响。我们提到了流经管道或流出容器的有趣的流变效应。

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《International Conference on Multiscale Phenomena and Their Simulation Bielefeld, Germany 30 September - 4 October, 1996》|1996年|p.59-69|共11页
会议地点 Bielefeld(DE)
作者
H. J. Herrmann;
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原文格式 PDF
正文语种 eng
中图分类 O5;
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Simulations of granular media

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