A microscopic numerical model of fluid flow through granular materials using the discrete-
element method is developed to take account of the effect of particle movement. The scheme …

In contrast to the conventional discrete element method (DEM), no dynamic or damping
variables are needed in the static DEM. This study aims at investigating the potential of the …

在土木工程中, 土坡稳定分析是个十分重要的问题. 其领域涉及公路, 铁路, 码头, 水利工程, 采矿,
废渣堆场等设施的建设. 由于实际土坡的受力特征和地质条件较为复杂, 土坡的破坏过程和影响 …

摘要为研究级配与颗粒形态对砂土压缩性的影响, 以球形石英砂和不规则形态的实验室标准砂为
材料, 采取砂雨法制样并进行侧限压缩实验, 使用课题组自主研发的三维离散元软件matDEm …

通过颗粒流软件PFC2D 中的clump 命令, 生成4 种不同外轮廓特征的颗粒组,
并结合颗粒材料变形机制, 定义构建基于颗粒圆度与凹凸度的形状系数. 用形状系数与粒间摩擦 …

Granular matter is the second most handled material after water in the global industry. Its
macroscopic behavior arises from a collisional to a collective motion of the constituent …

This paper presents a parametric study of a fluid-particle model which couples Lattice
Boltzmann Method (LBM) and Discrete Element Method (DEM) using an immersed moving …