Sands, Powders, and Grains

By J. Duran. 2000

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On dimensionless numbers (2008, background): “Presently, it witnesses a great boom after being ‘discovered’ by physicists, as a unique and highly specific state of matter (Duran, 2000; Hinrichsen and Wolf, 2004; Forterre and Pouliquen, 2008).”
Avalanche models for solar flares (Invited Review) (2001, background): “5That real piles of sand do not exhibit self-organized criticality (e.g., Nagel, 1992; Jensen, 1998, Section 3.2; Duran, 2000, Chapter 4) in no way diminishes the usefulness of this gedanken-sandpile as a pedagogical device, especially since other granular materials do behave in the manner to be…”
Velocity profile of granular flows inside silos and hoppers (2005, background): “r ﬂows inside silos and hoppers 2 1. Introduction Granular materials display a surprisingly complex range of properties which make them appear solid or liquid like depending on the applied conditions [1, 2]. Because the interaction between the grains is dissipative and the thermal energy scale is sm”
Experiments on corn pressure in silo cells – translation and comment of Janssen's paper from 1895 (2005, background): “the silo and especially when considering the dynamics of the granular material, Janssen’s approach no longer yields satisfactory answers [10].”