Study on Sand Pump : 1st Report, On the Trajectories of Solid Particles in the Pump Impeller

Abstract

When solid particles flow through the impeller of a volute pump with water, the behavior of particles is not always clear. The writers recorded photographically the trajectories of solid particles in the impeller using a high speed camera. In this paper the experimental results are cited, especially those on the relative velocity and its direction at the impeller exit. Moreover the numerical method of calculating the trajectories is demonstrated.