Self-diffusion and convection in vibrated particle beds

Yidan Lan, Anthony Rosato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we present the results of granular dynamics simulations of a particle bed which is energized through the imposition of sinusoidal oscillations to a plane rigid floor. The first part of the study is an investigation of the self-diffusion coefficient D = tr(D) of smooth inelastic spheres in a periodic computational cell where no bulk convection occurs. The second segment is concerned with the behavior of frictional and inelastic spheres, where the emphasis is placed on interesting spatio-temporal behavior disclosed in the computed velocity field. The motion of a single large sphere within the vibrated bed is analyzed in the case when enduring convection is present. Arching behavior observed in recent experiments is explained in terms of opposed internal vortex cells spanning the bed's width.

Original languageEnglish (US)
Title of host publicationMechanics of Deformation and Flow of Particulate Materials
PublisherASCE
Pages361-369
Number of pages9
StatePublished - Dec 1 1997
Externally publishedYes
EventProceedings of the 1997 ASME-ASCE-SES Joint Summer Meeting - Evanston, IL, USA
Duration: Jun 29 1997Jul 2 1997

Other

OtherProceedings of the 1997 ASME-ASCE-SES Joint Summer Meeting
CityEvanston, IL, USA
Period6/29/977/2/97

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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