Force propagation of flow of granular materials through an orifice in start up stage

  • Haiping Zhu
  • , Boshi Xia
  • , Aibing Yu

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

Abstract

In this paper, early stage of granular materials flowing through the orifice of a cuboid hopper with flat bottom is investigated based on the results generated by using the discrete element method. The results show that in the start up stage of the flow, a switch curve is formed between static and flowing particles, and a force arch on which the forces are very small is generated below the switch curve. Both curves propagate into the granular bed with the discharge of particles, and reach the top of the bed when a steady state is achieved.

Original languageEnglish
Title of host publicationApplied Mechanics and Mechanical Engineering III
Pages807-811
Number of pages5
DOIs
StatePublished - 2013
Event2012 3rd International Conference on Applied Mechanics and Mechanical Engineering, ICAMME 2012 - Macau, China
Duration: 14 Nov 201215 Nov 2012

Publication series

NameApplied Mechanics and Materials
Volume249-250
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2012 3rd International Conference on Applied Mechanics and Mechanical Engineering, ICAMME 2012
Country/TerritoryChina
CityMacau
Period14/11/1215/11/12

Keywords

  • Discrete element method
  • Granular mechanics
  • Hopper
  • Particle flow
  • Simulation

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