Dynamic Model and Numerical Simulation of Particle Motion in Rotation Flow Field of Centrifuge

摘要

In this study, in order to determine the size, configuration, rotating speed and other parameters of centrifuge separator, particle motion was simulated by the method of numerical integration of Runge-Kutta. For setting up of dynamic model, besides of forces of gravity, buoyancy, drag force and centrifugal force, the forces of imagination mass force, Basset force, Saffman lift force and pressure gradient force were considered. As the results, it was found that there were some relations among the length of drum, the particle diameter and the revolution of drum. There exist much differences of particle motion between different particles in various sizes. The visualization experiments were carried out to verify the calculated results. The experiment and calculation results were suited well.