| 颗粒物质随机Packing现象的研究 |
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| 引用本文： | 罗青.颗粒物质随机Packing现象的研究[J].南京晓庄学院学报,2006,22(4):23-26. |
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| 作者姓名： | 罗青 |
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| 作者单位： | 南京晓庄学院,物理系,江苏,南京,210017 |
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| 基金项目： | 南京晓庄学院校级青年专项项目(2005NXY41) |
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| 摘 要： | 通过分子动力学模型,数值模拟了二维系统中颗粒物质的堆集过程以及系统的覆盖率.考虑了边界为正方形和圆形两种不同情况,我们发现都出现多晶结构,与系统边界无关.在系统趋于饱和状态的情况下,系统粒子数越多,覆盖率越大.在粒子数相同的条件下,正方形边界的覆盖率要比圆形边界的覆盖率大.
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| 关 键 词： | 分子动力学模型 颗粒物质 堆积现象 |
| 文章编号： | 1009-7902（2006）04-0023-04 |
| 收稿时间： | 2005-12-05 |
| 修稿时间： | 2005年12月5日 |
A Study on Random Disk Packing Phenomenon |
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| LUO Qing.A Study on Random Disk Packing Phenomenon[J].Journal of Nanjing Xiaozhuang College,2006,22(4):23-26. |
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| Authors: | LUO Qing |
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| Abstract: | The granular packing in two dimensional systems with different boundaries(square boundary and circle boundary) is simulated.There are polycrystalline textures with irregular grain boundaries and linear shear fractures in these two systems.In addition,the covering fraction increases with the increasing of the number of particles.The results also show that with the same particle's number of particles,the covering fraction in the system of square boundary is larger than that in the system of circle boundary. |
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| Keywords: | dynamic model of molecule granular packing phenomenon |
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