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Motion of granular particles on the wall of a model silo and the associated wall vibrations

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  • Dr James Buick
  • P. Pankaj
  • J. Y. Ooi
  • J. Chavez-Sagarnaga
  • A. Pearce
  • G. Houghton
Dynamic phenomena during discharge of a silo are not well understood. This study uses a dual approach to quantify the motion of both the particulate solid at the wall of a model silo and the wall itself. The motion of particles was recorded visually using a digital CCD camera. The particles are seen to move with an intermittent motion. Image analysis techniques were then applied to obtain quantitative measurements of the particulate velocity. In relation to the particle motion, the silo walls were observed to vibrate during discharge. These vibrations were measured using a laser vibrometer to obtain independent measurements of the radial displacement and velocity. This enabled comparisons to be made between the particulate motion and the wall vibrations. Results are presented for barley and for polyethylene terephthalate pellets.
Original languageEnglish
Pages (from-to)2751-2760
JournalJournal of Physics D: Applied Physics
Issue number19
Early online date15 Sep 2004
Publication statusPublished - 7 Oct 2004


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    Rights statement: Journal of Physics D: Applied Physics © Copyright (2004) IOP Publishing Ltd. “This is an author-created, un-copyedited version of an article accepted for publication in [insert name of journal]. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/0022-3727/37/19/022.”

    Accepted author manuscript (Post-print), 523 KB, PDF document

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