Experimental studies of density segregation in the 3D rotating cylinder and the absence of banding

We experimentally investigated 3D biparticulate systems that segregate solely due to density differences in the 3D horizontal rotating drum geometry and compare these to systems which segregate due to size differences. Radial segregation was observed in all systems studied after a few drum rotations...

Full description

Saved in:

Bibliographic Details
Published in:	Granular matter Vol. 11; no. 2; pp. 73 - 78
Main Authors:	Sanfratello, Lori, Fukushima, Eiichi
Format:	Journal Article
Language:	English
Published:	Berlin/Heidelberg Springer-Verlag 01-03-2009 Springer Nature B.V
Subjects:	Complex Fluids and Microfluidics Density Engineering Fluid Dynamics Engineering Thermodynamics Experiments Foundations Geoengineering Heat and Mass Transfer Hydraulics Industrial Chemistry/Chemical Engineering Materials Science Physics Physics and Astronomy Ratios Rheology Soft and Granular Matter Granular flow Density segregation Granular segregation Axial segregation
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	We experimentally investigated 3D biparticulate systems that segregate solely due to density differences in the 3D horizontal rotating drum geometry and compare these to systems which segregate due to size differences. Radial segregation was observed in all systems studied after a few drum rotations. Size induced axial segregation (banding) was observed, as expected. However, contrary to what has sometimes been reported, we found that density differences alone did not induce axial segregation for density ratios up to 4.9.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	1434-5021 1434-7636
DOI:	10.1007/s10035-008-0121-3