A SIMULATION OF LARGE SCALE SEDIMENT FLOW EXPERIMENT USING DEM

Abstract

In order to study suitable calculation conditions for estimating impact force of sediment flow using DEM, a simulation of a large scale sediment flow experiment was performed. By changing element size and element shape, the effects of thease factors were investigated in the simulation. Based on the obtained results, importance of element size and flow chracteristics of the spherical ekement and non-sherical eklement are analyzed. In addition, a flow of the estimation process is proposed, and some points of attention are summarized from the view points of engineering.