Experimental Mechanics

, 44:593 | Cite as

Improved experimental tracking techniques for validating discrete element method simulations of tumbling mills

  • I. Govender
  • A. T. McBride
  • M. S. Powell


We report on further developments in the three-dimensional tracking of a particle deep within the tumbling ball charge of an experimental mill. The experimental X-ray program employing the use of bi-planar X-ray angiography now includes the tracking of a typical 6 mm bulk charge particle in three dimensions with a spatial resolution that is accurate to within 0.15 mm. The improved experimental tracking techniques presented were developed for the purpose of generating accurate three-dimensional particle trajectory data against which to validate a numerical method for the simulation of discrete media, namely the discrete element method (DEM). These improvements are complimented with techniques for comparing charge profiles between numerical DEM simulations and three-dimensional experimental trajectory data.

Key Words

Template matching angiography comminution discrete element method 


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Copyright information

© Society for Experimental Mechanics 2004

Authors and Affiliations

  • I. Govender
    • 1
  • A. T. McBride
    • 1
  • M. S. Powell
    • 1
  1. 1.Mineral Processing Research Unit, Department of Chemical EngineeringUniversity of Cape TownSouth Africa

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