On the Segregation of Particles in a Horizontal Rotating Conical Vessel. Axial Segregation Mechanism of Particles in a Conical Vessel Rotating at Lower Critical Speed Ratio.

Segregation of Suspended Particles in a Rotating Fluid-filled Horizontal Cylinder – Experiment and Theory

An extensive experimental investigation into the segregation phenomenon of suspended particles in a rotating fluid-filled horizontal cylinder is presented as well as a theoretical approach to the underlying physics, based on the assumptions of small Ekman and Rossby numbers. The theoretical predictions agree well with experimental findings. The influence of non-linearity and viscosity on the ph...

Axial segregation of a settling suspension in a rotating cylinder.

A rotating suspension of nonbuoyant particles can develop striking inhomogeneities in particle concentration, with regular bands of high and low concentration along the symmetry axis. We report Stokes-flow simulations showing that the formation of axial bands is correlated with an inhomogeneous particle distribution in the radial plane. An order parameter, based on the average angular velocity ...

Reversible axial segregation of rotating granular media.

Continuum theory of axial segregation in a long rotating drum.

We develop a continuum description for the axial segregation of granular materials in a long rotating drum based on the dynamics of the thin near-surface granular flow coupled to bulk flow. The equations of motion are reduced to the one-dimensional system for two local variables only, the concentration difference and the dynamic angle of repose, or the average slope of the free surface. The par...

Closed-Circuit Granulation by a Single Horizontal Rotating Conical Vessel -Effect of Circulating Load Ratio on the Properties of Products - by

Closed-Circuit Granulation by a Single Horizontal Rotating Conical Vessel -Effect of Circulating Load Ratio on the Properties of Products by Masunori SUGIMOTO* and Hideki NAKAZAWA** In order to investigate the effect of the circulating load ratio CL on the properties of granule products in a closed-circuit granulation system, the relationship between CL and the residence time distribution of pa...