| 平动旋转圆盘内颗粒物质分离现象 |
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| 引用本文： | 朱纪跃,张攀,周又和. 平动旋转圆盘内颗粒物质分离现象[J]. 兰州大学学报(自然科学版), 2009, 45(6) |
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| 作者姓名： | 朱纪跃 张攀 周又和 |
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| 作者单位： | 兰州大学,土木工程与力学学院,西部灾害与环境力学教育部重点实验室,兰州,730000 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 采用实验和数值模拟方法研究了单层二元混合颗粒在水平振动条件下的颗粒分离现象.结果表明填充密度对二元颗粒分离有着重要影响.随着填充密度的增加,颗粒团会逐步出现反转和颗粒分离现象.这一研究为揭示颗粒物分离的巴两果效应提供了简单的典型模式.
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| 关 键 词： | 平动旋转圆盘 颗粒分离 填充密度 巴西果效应 |
On the size segregation of granular matter in the horizontal revolving system |
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| ZHU Ji-yue,ZHANG Pan,ZHOU You-he. On the size segregation of granular matter in the horizontal revolving system[J]. Journal of Lanzhou University(Natural Science), 2009, 45(6) |
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| Authors: | ZHU Ji-yue ZHANG Pan ZHOU You-he |
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| Abstract: | The segregation of a mixture with two size spheres on the horizontal revolving pan was investigated into. The experimental and computational results indicate that the packing density of particles played an important role in segregation. As the packing density increased, the cluster of granular matter moved in the opposite direction with respect to the swirling motion of the container and a demixing occurred. This experiment can serve as a simple model to reveal the Brazil-nut effect in the size segregation of granular matter. |
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| Keywords: | horizontal revolving system size segregation packing density Brazil-nut effect |
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