Rheological Transition in Granular Media

Zahra Shojaaee (), Lothar Brendel and Dietrich E. Wolf
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Zahra Shojaaee: University of Duisburg, Department of Physics
Lothar Brendel: University of Duisburg, Department of Physics
Dietrich E. Wolf: University of Duisburg, Department of Physics

A chapter in Traffic and Granular Flow ’07, 2009, pp 653-658 from Springer

Abstract: Summary The planar shearing of a two-dimensional system of bidisperse, non-cohesive discs at constant shear velocity is simulated using Contact Dynamics. The granular medium is confined between two parallel walls, which are pushed inwards by constant normal forces. The flow as a function of the shear velocity shows characteristics of a first order phase transition. The order parameter, the center of mass velocity in units of the shear velocity, undergoes a spontaneous symmetry breaking below a certain shear velocity, which does not depend on the distance between the walls.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-77074-9_73

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DOI: 10.1007/978-3-540-77074-9_73

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