Formation of ordered structure and its effect on particle percolation in a vibrated bed

Amir Hossein Esfandiary, Kejun J Dong, Aibing Yu

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Particle percolation in a vibrated bed is investigated by means of discrete element method (DEM). It is found that under some vibrational conditions, percolation becomes unsteady with the percolation velocity fluctuating in a wide range. This happens when dimensionless vibrational velocity, V b(A.(2pf)/gD), is in a certain range, where A is the vibrational amplitude, f is the vibrational frequency, g is the gravitational acceleration and D is the diameter of large particles. The unsteady particle percolation in this range has been analysed on a particle scale, which reveals that V b (in the certain range) can favour the crystallization in the vibrated bed, which significantly decreases the particle percolation velocity. Such crystallizations occasionally happen, leading to the unsteady percolation behaviour.
Original languageEnglish
Title of host publicationPowders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media
EditorsAibing Yu, Kejun Dong, Runyu Yang, Stefan Luding
Place of PublicationMelville NY USA
PublisherAmerican Institute of Physics
Pages747 - 750
Number of pages4
Volume1542
ISBN (Print)9780735411661
DOIs
Publication statusPublished - 2013
Externally publishedYes
EventPowders and Grains 2013 - Sydney, Australia
Duration: 8 Jul 201312 Jul 2013
Conference number: 7th
http://www.pg2013.unsw.edu.au/
http://www.proceedings.com/21017.html

Conference

ConferencePowders and Grains 2013
CountryAustralia
CitySydney
Period8/07/1312/07/13
Internet address

Cite this