Movement of Solid Particles in Vertical Pipe

摘要

The paper presents results of experimental measurements devoted to movement of single spherical particles in suspensions of different concentrations. Obtained results have been compared with estimations based on equations for calculation of fall velocities of spherical particles in liquids. In second investigation presented in this paper relations between parameters of falling particles and flowing medium in vertical pipeline have been presented. Between others, drag coefficients have been determined in function of particles diameter and flow velocity in a vertical pipeline. Foamed polystyrene particles have been used successfully as a model for air bubbles in laboratory measurements.