PDF《用离散元模拟颗粒堆积问题》

two-dimensional'

piling with multi-disperse particles were simulated using Discrete Element Method. The effects of frictions of both particle and particle arrangement on the magnitude of repose angle were studied. The numerical results show that, under identical conditions, increasing friction of particles and base wall leads to the rise of the repose angle. On the contrary, increasing density of particles will decrease the angle of repose. Key words:agricultural engineering;

discrete element method;

particle piling;

granule mechanics;

repose angle ........