Random Loose Packing of Binary Mixtures of Spheres
Random Loose Packing of Binary Mixtures of Spheres
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DOI：
10.1038/196885a0
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发表时间：
1962-12
期刊：
影响因子：
64.8
通讯作者：
N. Epstein;M. Young
中科院分区：
文献类型：
--
作者：
N. Epstein;M. Young
J. D. Bernal 1指出了几何模型在描述液体结构中的重要性，这引起了人们对球体堆积的极大兴趣2 -7。虽然以前的调查往往与密集的随机状态8，9，最近的一些工作一直致力于松散的states 3，4，6。斯科特3和麦克雷和格雷4获得松散的存款领域的滚动程序，而罗格斯6，在共同的Levaet al.10几年前，获得了松散的包装倾倒或倾倒。因此，所报道的孔隙率，虽然明显高于在致密无规状态下发现的孔隙率，但仍然低于通过快速倒置圆筒11或通过逐渐减少通过流化床的气体（或液体）流量至零所获得的孔隙率12，13。后者的孔隙率与在移动填充床14和初始流化床13中观察到的孔隙率相对应。
THE attention which J. D. Bernal1has directed to the importance of geometrical models for representing the structure of liquids has elicited considerable recent interest in the packing of spheres2–7. While previous investigations were often concerned with the dense random state8,9, some of the more recent work has been devoted to looser states3,4,6. Both Scott3and MacRae and Gray4obtained loose deposits of spheres by a rolling procedure, while Rutgers6, in common with Levaet al.10some years earlier, obtained a loose packing by dumping or pouring. Porosities thus reported, though significantly higher than those found in the dense random state, are nevertheless still lower than those obtained either by rapidly inverting a cylinder11or by gradually diminishing to zero the gas (or liquid) flow through a fluidized bed12,13. It is the latter porosities which correspond to those observed in both moving packed14and incipiently fluidized13beds.