Jamming Patterns and Blockade Statistics in Model Granular Flows

E. Clément, G. Reydellet, F. Rioual, B. Parise, V. Fanguet, J. Lanuza and E. Kolb
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E. Clément: UMR7603 - Université Pierre et Marie Curie - Boite 86, Laboratoire des Milieux Désordonnés et Hétérogènes
G. Reydellet: UMR7603 - Université Pierre et Marie Curie - Boite 86, Laboratoire des Milieux Désordonnés et Hétérogènes
F. Rioual: UMR7603 - Université Pierre et Marie Curie - Boite 86, Laboratoire des Milieux Désordonnés et Hétérogènes
B. Parise: UMR7603 - Université Pierre et Marie Curie - Boite 86, Laboratoire des Milieux Désordonnés et Hétérogènes
V. Fanguet: UMR7603 - Université Pierre et Marie Curie - Boite 86, Laboratoire des Milieux Désordonnés et Hétérogènes
J. Lanuza: UMR7603 - Université Pierre et Marie Curie - Boite 86, Laboratoire des Milieux Désordonnés et Hétérogènes
E. Kolb: UMR7603 - Université Pierre et Marie Curie - Boite 86, Laboratoire des Milieux Désordonnés et Hétérogènes

A chapter in Traffic and Granular Flow ’99, 2000, pp 457-468 from Springer

Abstract: Abstract We report experimental results on two model granular media submitted to gravity flows, i.e., a bidimensional hopper and a vertical column. For the hopper, the statistics of the flow blockade is monitored. For the vertical column, we study the flowing dynamics and we show, for narrow openings, regimes of density waves and full blockade depending on the dissipative character of the grains. For the least dissipative grains the density, velocity and temperature fields are measured and compared with the prediction of a granular hydrodynamics theory.

Keywords: Density Wave; Packing Fraction; Granular Flow; Kinematic Wave; Restitution Coefficient (search for similar items in EconPapers)
Date: 2000
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DOI: 10.1007/978-3-642-59751-0_50

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