G. Lumay, F. Boschini, R. Cloots, N. Vandewalle,
Cascade of granular flows for characterizing segregation,
Powder Technology, Volume 234,2013, Pages 32-36,
We propose a method using an original apparatus to amplify any segregation from a granular mixture.
The device is a superposition of four Hele Shaw cells for producing a cascade of granular flows that enhances the segregation process.
After the flow cascade, the concentration of each granular species is measured in the different cells.
From these concentrations, a parameter p that characterizes the ability of the mixture to segregate is calculated.
The physical model used to calculate this parameter p is presented.
Finally, the method is validated with a series of experiments performed with common granular materials. Relevant parameters behind segregation are evidenced.