The study of granular material is of great interest to many researchers
in both engineering and science communities. The importance of
such a study derives from its complex rheological character and
also its significant role in a wide range of industrial applications,
such as coal, food, plastics, pharmaceutical, powder metallurgy and
mineral processing. A number of recent reports have been focused
on the physics of non-cohesive granular material submitted to
vertical vibration in either experimental or theoretical approaches.
Such a kind of system can be used to separate, mix and dry
granular materials in industries. It exhibits different instability
behaviour on its surface when under vertical vibration, for example,
avalanching, surface fluidization and surface wave, and these
phenomena have attracted particular interest of many researchers.
This project aims to study the solids motion in this systems
using tracking technique—Positron Emission Particle Tracking.
Solids motion features investigated include cycle frequency
and dispersion.—Such understanding should provide routes to
improving the quality of granular mixing behaviour in vertically