10.4225/03/5b2055107e494 TENGFANG ZHANG TENGFANG ZHANG Numerical investigation of particle size segregation in piling, hopper filling and discharging processes Monash University 2018 segregation DEM hopper Powder and Particle Technology Simulation and Modelling 2018-06-12 23:19:42 Thesis https://bridges.monash.edu/articles/thesis/Numerical_investigation_of_particle_size_segregation_in_piling_hopper_filling_and_discharging_processes/6499298 This thesis examines the size segregation phenomenon in the piling, hopper filling and discharging processes, and the application in a paul-wurth hopper by discrete element method. It clarifies the underlying mechanisms of segregation by the microscopic parameters, including velocity, porosity and forces obtained from the simulation. These four processes are analysed comprehensively. The effects of material property, moisture content, size ratio and volume fraction are investigated. At last, several correlations are proposed to reveal the structural characteristics.