Collapse of quasi-two-dimensional wet granular columns

Riccardo Artoni, Andrea C. Santomaso, Fabio Gabrieli, Diego Tono, and Simonetta Cola
Phys. Rev. E 87, 032205 – Published 14 March 2013

Abstract

This paper deals with the experimental characterization of the collapse of wet granular columns in the pendular state, with the purpose of collecting data on triggering and jamming phenomena in wet granular media. The final deposit shape and the runout dynamics were studied for samples of glass beads, varying particle diameter, liquid surface tension, and liquid amount. We show how the runout distance decreases with increasing water amount (reaching a plateau for w>1%) and increases with increasing Bond number, while the top and toe angles and the final deposit height increase with increasing water amount and decrease with decreasing Bond number. Dimensional analysis allowed to discuss possible scalings for the runout length and the top and toe angles: a satisfying scaling was found, based on the combination of Bond number and liquid amount.

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  • Received 12 September 2012

DOI:https://doi.org/10.1103/PhysRevE.87.032205

©2013 American Physical Society

Authors & Affiliations

Riccardo Artoni* and Andrea C. Santomaso

  • Dipartimento di Ingegneria Industriale, Università di Padova, Via Marzolo 9, 35131 Padova, Italy

Fabio Gabrieli, Diego Tono, and Simonetta Cola

  • Dipartimento di Ingegneria Civile Edile e Ambientale, Università di Padova, Via Marzolo 9, 35131 Padova, Italy.

  • *Current address: L’UNAM, IFSTTAR, Route de Bouaye, CS4, 44344 Bouguenais Cedex, France; riccardo.artoni@ifsttar.fr
  • fabio.gabrieli@unipd.it

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Issue

Vol. 87, Iss. 3 — March 2013

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