| Effects of Continuous Size Distributions on Pressures of Granular Gases |
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| 作者姓名： | 李睿 张端明 陈志远 苏向英 朱红英 张灵 黄明涛 |
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| 作者单位： | Department of Physics Huazhong University of Science and Technology, Wuhan 430074 |
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| 基金项目： | Supported by the National Natural Science Foundation of China through Grant Nos 10675048 and 10604017. |
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| 摘 要： |
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| 关 键 词： | 颗粒状气体 压力 分布情况 零重力 |
| 收稿时间： | 2006-12-19 |
| 修稿时间： | 2006-12-19 |
Effects of Continuous Size Distributions on Pressures of Granular Gases |
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| LI Rui,ZHANG Duan-Ming,CHEN Zhi-Yuan,SU Xiang-Ying,ZHU Hong-Ying,ZHANG Ling,HUANG Ming-Tao.Effects of Continuous Size Distributions on Pressures of Granular Gases[J].Chinese Physics Letters,2007,24(6):1482-1485. |
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| Authors: | LI Rui ZHANG Duan-Ming CHEN Zhi-Yuan SU Xiang-Ying ZHU Hong-Ying ZHANG Ling HUANG Ming-Tao |
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| Affiliation: | Department of Physics Huazhong University of Science and Technology, Wuhan 430074 |
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| Abstract: | Direct Monte Carlo simulations are employed to investigate the granular pressures in granular materials with a power-law particle size distribution. Specifically, smooth circular discs of uniform material density are engaged in a two-dimensional rectangular box, colliding inelastically with each other and driven by a homogeneous heat bath at zero gravity. The resulting pressures are found to decrease as the widths of particle size distribution are increased. Moreover, the granular pressures in power-law systems are found to be unequally distributed among the various sizes of particles, with large particles possessing more pressure than their smaller counterparts. The width-dependent nature of the total pressures is induced by the more dispersion of smaller particles in the system as the particle size distribution is widened. |
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| Keywords: | 05 20 Dd 81 05 Rm 83 10 Pp |
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