The dynamics of wet granular matter under a vertical vibration bed

S. S. Hsiau, C. C. Liao, C. H. Tai, C. Y. Wang

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

This study investigates the dynamic properties of convection rolls in a 2D wet vibrated granular bed. A particle tracking method with the help of image-processing technology was used to measure the velocity fields, convection flow rate, and the granular temperatures in the wet vibrated granular bed. This study examines the dynamic behaviors of wet granular materials subjected to external vertical vibration. Different liquid contents, viscosities, and surface tensions were added to glass beads forming cohesive granular materials in the vibrated granular bed. This study presents a systematic investigation of the effects of the addition of liquid content, viscosity, and surface tension on dynamic properties of wet particulates. Results show that the convection flow rate and granular temperature decrease monotonically as the added liquid content and liquid viscosity increase. However, the effects of surface tension on the convection flow rate are more significant at the smaller liquid content than that at a higher liquid content. The convection flow rate also decreases in a power decay as the modified Bond number increases.

Original languageEnglish
Pages (from-to)437-446
Number of pages10
JournalGranular Matter
Volume15
Issue number4
DOIs
StatePublished - Aug 2013

Keywords

  • Cohesive force
  • Convection
  • Granular temperature
  • Liquid bridge
  • Vibration bed

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