How Should the Discrete Element Method Be Applied in Industrial Systems?: A Review

KONA Powder and Particle Journal

Mikio Sakai¹ 

[1] Resilience Engineering Research Center, School of Engineering, The University of Tokyo, Japan;

关键词: large-scale discrete element modeling;    signed distance function-based wall boundary;    multi-phase flow modeling;    discrete element method;    lagrangian computational fluid dynamics;    multi-physics modeling;   

DOI  :  10.14356/kona.2016023

来源: DOAJ

【 摘 要 】

In this paper, we describe an industrial application of the discrete element method (DEM). The DEM has been applied to various powder systems thus far and therefore appears to be an established approach. However, it cannot be applied to many industrial systems because of several critical problems such as modeling of large-scale simulations, complexly shaped wall boundaries and free surface fluid flow. To solve these problems, novel models were developed by our group. A coarse-grain DEM model was developed for large-scale simulations, a signed distance function-based wall boundary model was developed for complexly shaped walls and a DEM-moving particle semi-implicit method was developed for solid-liquid flow involving a free surface. The adequacy of these models was demonstrated through verification and validation tests. Our approach shows promise in industrial applications.

【 授权许可】

Unknown