【摘要】 "巴西果"分离(BNS)是振动颗粒物质的一个主要现象.近几年来,寻找影响"巴西果"分离的因素及其形成的物理机制受到众多学者的广泛关注.文章系统地总结了影响"巴西果"分离的各种因素及相关物理模型,指出了各种模型的适用范围及存在的不足.阐述了目前颗粒物质研究热点及今后需要开展的研究工作的方向.更多还原

【Abstract】 Brazil-nut segregation is a marked phenomena of granular matter. Recently, much attention has focused on the factors and physical mechanisms that influence the segregation. This paper summarizes these factors and the various models of Brazil-nut segregation, indicating their application range and limits. Current research areas and future directions are given.更多还原