涨落诱导相互作用在颗粒材料轴向分离中的作用。
Role of fluctuation-induced interactions in the axial segregation of granular materials.
作者信息
Zuriguel I, Boudet J F, Amarouchene Y, Kellay H
机构信息
Centre de Physique Moleculaire Optique et Hertzienne, UMR 5978, U. Bordeaux1 351 cours de la Liberation, 33405 Talence cedex France.
出版信息
Phys Rev Lett. 2005 Dec 16;95(25):258002. doi: 10.1103/PhysRevLett.95.258002.
The movement of a few large diameter spheres immersed in a granular medium composed of smaller beads in a rotating cylinder is studied. We evidence attractions and repulsions between the large spheres depending on the rotation frequency. The large spheres also show relative position fluctuations which are Gaussian. A complete study of this problem sheds new light on the problem of size segregation in granular materials and points to the importance of fluctuation-induced interactions.
研究了几个大直径球体在一个装有由较小珠子组成的颗粒介质的旋转圆柱体内的运动。我们证明了大球体之间存在取决于旋转频率的吸引和排斥作用。大球体还表现出呈高斯分布的相对位置波动。对这个问题的全面研究为颗粒材料中的尺寸分离问题提供了新的见解，并指出了波动诱导相互作用的重要性。
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