Abstract

We consider an inclined flow of two different types of spheres in which there is a dense collisional flow above a layered flow that involves force-chains that extend through its depth. In the latter, the granular temperature increases linearly from its base, in the former the granular temperature increases linearly from its top. Consequently, for spheres of the same material, the larger spheres segregate away from the point of transition between the flows and towards the bottom of the layered flow and the top of the collisional flow. The concentration profiles for spheres made of different materials exhibit more complicated behaviour, depending on the ratios of mass and size.

Graphical abstract

Theoretical predictions of the segregation measure, X, and of the relative concentration of large (A) and small (B) particles. The parameters are given in the caption of Fig. 3.

中文翻译：

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在具有基础分层的密集，倾斜，颗粒状流中分离

摘要

我们考虑两种不同类型的球体的倾斜流，其中在分层流上方存在密集的碰撞流，其中层状流涉及延伸穿过其深度的力链。在后者中，颗粒温度从其底部开始线性增加，在前者中，颗粒温度从其顶部开始线性增加。因此，对于相同材料的球体，较大的球体从流之间的过渡点分离开，并朝向分层流的底部和碰撞流的顶部分离。由不同材料制成的球体的浓度曲线显示出更复杂的行为，具体取决于质量和尺寸的比率。

图形概要

分离度量X以及大颗粒（A）和小颗粒（B）相对浓度的理论预测。参数在图3的标题中给出。