Microstructure evolution in density relaxation by tapping

Anthony D. Rosato, Oleksandr Dybenko, David J. Horntrop, Vishagan Ratnaswamy, and Lou Kondic

Phys. Rev. E 81, 061301 – Published 8 June 2010

Abstract

The density relaxation phenomenon is modeled using both Monte Carlo and discrete element simulations to investigate the effects of regular taps applied to a vessel having a planar floor filled with monodisperse spheres. Results suggest the existence of a critical tap intensity which produces a maximum bulk solids fraction. We find that the mechanism responsible for the relaxation phenomenon is an evolving ordered packing structure propagating upwards from the plane floor.

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Received 30 August 2009

DOI:https://doi.org/10.1103/PhysRevE.81.061301

Authors & Affiliations

Anthony D. Rosato¹, Oleksandr Dybenko¹, David J. Horntrop², Vishagan Ratnaswamy¹, and Lou Kondic²

¹Granular Science Laboratory, Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, USA
²Department of Mathematical Sciences and Center for Applied Mathematics and Statistics, New Jersey Institute of Technology, Newark, New Jersey 07102, USA

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Vol. 81, Iss. 6 — June 2010

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