Impact of solid flow on a granular bed

S. M. Wu, H. P. Zhu, A. B. Yu, P. Zulli

Research output: Contribution to conferencePaper


This paper presents an experimental and numerical study of the formation of crater by impacting a particle stream onto a particle bed using a 2D slot model. The numerical simulation is performed by means of the discrete element method (DEM). The results show that the DEM simulation can reproduce the experimental results well under comparative conditions. During the impact process, most of the energy from the falling particles is dissipated, and only a small amount of the energy contributes to the formation of the crater. The crater size is shown to be related to the ratio of the input energy from the falling stream to the inertial energy from the original packing.

Original languageEnglish
Publication statusPublished - 1 Dec 2006
Externally publishedYes
EventWorld Congress on Particle Technology (WCPT) 2006 - Orlando, United States of America
Duration: 23 Apr 200627 Apr 2006
Conference number: 5th


ConferenceWorld Congress on Particle Technology (WCPT) 2006
Abbreviated titleWCPT 2006
CountryUnited States of America


  • Discrete element method
  • Energy
  • Granular matter
  • Impact crater

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