Effects of packing density on the segregative behaviors of granular systems

C.R.K. Windows-Yule, T. Weinhart, D.J. Parker, A.R. Thornton

Research output: Contribution to journalArticleAcademicpeer-review

34 Citations (Scopus)
102 Downloads (Pure)

Abstract

We present results concerning the important role of system packing in the processes of density- and inelasticity-induced segregation in vibrofluidized binary granular beds. Data are acquired through a combination of experimental results acquired from positron emission particle tracking and simulations performed using the discrete particle method. It is found that segregation due to inelasticity differences between particle species is most pronounced in moderately dense systems, yet still exerts a significant effect in all but the highest density systems. Results concerning segregation due to disparities in particles’ material densities show that the maximal degree to which a system can achieve segregation is directly related to the density of the system, while the rate at which segregation occurs shows an inverse relation. Based on this observation, a method of minimizing the time and energy requirements associated with producing a fully segregated system is proposed.
Original languageEnglish
Article number098001
Number of pages5
JournalPhysical review letters
Volume112
Issue number9
DOIs
Publication statusPublished - 4 Mar 2014

Keywords

  • EWI-24990
  • IR-91654
  • METIS-305991

Fingerprint

Dive into the research topics of 'Effects of packing density on the segregative behaviors of granular systems'. Together they form a unique fingerprint.

Cite this