论文标题
密集颗粒流中的惯性力传播
Inertial Force Transmission in Dense Granular Flows
论文作者
论文摘要
多种连续模型很好地描述了密集的颗粒流，但是它们的内部动力学仍然难以捉摸。这项研究探讨了模拟稳定和同质剪切流中的接触力分布。结果表明，在更快的流动中存在高幅度的接触力。提出的物理机制解释了这种依赖速率的力传播。该分析建立了接触力和晶粒速度之间的关系，提供了一个进入点，以统一从接触力或晶粒速度中得出的一系列连续模型。
Dense granular flows are well described by several continuum models, however, their internal dynamics remain elusive. This study explores the contact force distributions in simulated steady and homogenous shear flows. Results demonstrate the existence of high magnitude contact forces in faster flows with stiffer grains. A proposed physical mechanism explains this rate-dependent force transmission. This analysis establishes a relation between contact forces and grain velocities, providing an entry point to unify a range of continuum models derived from either contact forces or grain velocity.
