Analysis of Particle Dynamics in Floatex Density Separator

Archimedes buoyancy should be calculated considering bulk density of the suspension rather than density of pure liquid. They concluded that the overall friction can be decomposed into solid-liquid and solid-solid component. In the upper transition (Laminar to turbulent) and turb-ulent regime, the particle-particle friction is shown to be proportional to the product of the hold up of the fluidized particles and the slip velocity of dense fluid-ized particles.