| 粮仓效应的圆盘堆积模型 |
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| 引用本文： | 张兴刚,胡林,隆正文.粮仓效应的圆盘堆积模型[J].计算物理,2006,23(6):642-646. |
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| 作者姓名： | 张兴刚 胡林 隆正文 |
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| 作者单位： | 贵州省光电子技术及应用重点实验室,贵州大学理学院,贵州,贵阳,550025 |
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| 基金项目： | 国家自然科学基金;贵州省自然科学基金;贵州省省长基金 |
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| 摘 要： | 为研究圆筒中颗粒堆内部的应力分布，将颗粒堆简化为规则的二维圆盘堆积模型．对圆盘堆积中力的传递进行分析后给出了圆盘堆积中力的传递规律，利用计算机模拟了圆盘对容器底部的压力，发现底部压力随圆盘层数增加会达到饱和，并将二维圆盘堆积的规律推广到三维颗粒堆，从理论上推导出容器底部平均压强p^-与颗粒填充高度Z的关系．
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| 关 键 词： | 颗粒物质 粮仓效应 Janssen模型 数值模拟 |
| 文章编号： | 1001-246X（2006）06-0642-05 |
| 收稿时间： | 2005-06-10 |
| 修稿时间： | 2005-09-08 |
A Model of Disc Pile with Silo Effect |
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| ZHANG Xing-gang,HU Lin,LONG Zheng-wen.A Model of Disc Pile with Silo Effect[J].Chinese Journal of Computational Physics,2006,23(6):642-646. |
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| Authors: | ZHANG Xing-gang HU Lin LONG Zheng-wen |
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| Institution: | Lab for Photoelectric Technology and Application, Guizhou University, Guiyang 550025, China |
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| Abstract: | A model of planar disc pile is applied to complicated granular matters. We analyze force transfer in the disc pile. Numerical simulation shows that the pressure on the cylinder bottom saturates with increasing height of granules. The rule of the planar disc pile is extended to three-dimensional granules and the relation between the height Z of granules and the average pressure p^- on cylinder bottom is obtained. |
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| Keywords: | granular matter silo effect Janssen's model numerical simulation |
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