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Looking for Self-Organized Critical Behavior in Avalanches of Slightly Cohesive Powders

 

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Author: Sánchez Quintanilla, Miguel Angel
Valverde Millán, José Manuel
Castellanos Mata, Antonio
Viturro, R. Enrique
Department: Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo
Date: 2001
Published in: Physical review letters, 87, 19, 194301-1-194301-4
Document type: Article
Abstract: We report results from a statistical analysis of avalanches of cohesive powders in a slowly rotated drum. Interparticle adhesion, which diminishes the effect of inertia and whose magnitude strongly fluctuates in a local scale, makes avalanches in slightly cohesive powders eligible for displaying self-organized criticality. However, the results show that avalanche sizes, time interval between avalanches, and maximum stable angle do not follow a power-law distribution. Otherwise, these parameters scale with powder cohesiveness.
Size: 134.2Kb
Format: PDF

URI: http://hdl.handle.net/11441/26932

DOI: 10.1103/PhysRevLett.87.194301

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