Discussion on the difference of the grain particle parameters in reality and DEM

Abstract

The discrete element method was widely used in analyzing mechanics and movement behaviors of grain particle in recent years. An application of the method in the field of grains was presented in this paper. The experiment and simulation about the angle of corn indicates that the particle shape cannot be ignored in discrete element simulations, as well as the accuracy particle shape influences the simulation speed indirectly. In order to ensure the accuracy of the calculation results and improve the calculation efficiency, it is important to choose appropriate particle shape and particle material parameters in discrete element simulations.