Effect of gravity on particle dispersion in a horizontally vibrating bed

Kejun J Dong, Kunio Shinohara, Aibing Yu

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

2 Citations (Scopus)

Abstract

Particle dispersion in a horizontally vibrated vessel under microgravity is investigated by a discrete element method (DEM) based numerical model. The vessel is specially designed with the top corners being round shaped, which is to direct the particles inside under microgravity for outer space applications. The effect of gravity is particularly examined by a series of controlled numerical experiments. The dependence of the structure and dynamics of the system, in terms of spatial distribution, local packing density, velocity distribution and kinetic energy, on the magnitude of gravity are quantified. It is found that with the increase of gravity, more particles accumulate on the longitudinal walls, whereas the convective flow of the dispersed particles always exists, until the gravity reaches a certain value and most particles cannot be agitated. The round corner affects the local flow pattern but has limited effects on the overall system with the variance of gravity.
Original languageEnglish
Title of host publicationPowders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media
EditorsAibin Yu, Kejun Dong, Runyu Yang, Stefan Luding
Place of PublicationMelville NY USA
PublisherAmerican Institute of Physics
Pages823 - 826
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

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