Dataset for "How particle shape affects granular segregation in industrial and geophysical flows"

Granular materials like cereal, pharmaceuticals, sand and concrete commonly organize such that grains segregate according to size rather than uniformly mixing. For example, in a jar of nuts, the largest ones are commonly found at the top. Here, we use computer simulations to explore how grain shape controls this phenomenon in industrial and natural settings. We find that even small differences in shape can substantially change the amount and style of segregation, with different effects depending on whether the system is wet or dry. This study demonstrates the importance of grain shape in different systems ranging from food and medicine production to geophysical hazards and processes such as landslides, river erosion, and debris flows on Earth and other celestial bodies.
This dataset contains examples in how to perform the simulations and the results shown in the manuscript How particle shape affects granular segregation in industrial and geophysical flows.

诸如谷物、医药颗粒、砂石与混凝土等颗粒物料，通常会按粒径发生偏析，而非形成均匀混合的状态。例如，在一罐坚果中，个头最大的坚果往往会浮聚在罐顶。本研究通过计算机模拟，探究颗粒形状如何在工业与自然场景中调控这一偏析现象。研究发现，即便颗粒形状仅存在细微差异，也能显著改变偏析的程度与模式，且其影响效果会因体系处于湿态还是干态而有所不同。本研究凸显了颗粒形状在诸多体系中的重要性，涵盖食品与医药生产，乃至地球及其他天体上的滑坡、河流侵蚀、碎屑流等地球物理灾害与相关过程。
本数据集包含了本手稿《颗粒形状如何影响工业与地球物理流动中的颗粒偏析》中提及的模拟操作示例与相关研究结果。