Abstract
In order to investigate effects of particle size and particle shape in DEM simulations, a series of simulations of a model test using dry sand were carried out. By analyzing the simulated results, following findings were obtained. Non-spherical particles can describe flow behavior of sand much better than spherical particles, and it is possible to describe the flow behavior even if some bigger non-spherical particles are used in the simulation. It is also found that considering particle shape is important to describe the flow behavior but degree of the shape is not sensitive factor.
