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Flow Regimes in Fine Cohesive Powders


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Author: Castellanos Mata, Antonio
Valverde Millán, José Manuel
Pérez Izquierdo, Alberto Tomás
Ramos Reyes, Antonio
Watson, P. Keith
Department: Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo
Date: 1999
Published in: Physical review letters, 82, 6, 1156-1159
Document type: Article
Abstract: Granular materials exhibit several regimes of behavior: plastic, inertial, fluidized, and entrained flow, but not all materials can pass through all of these states. Our concern is with the criteria that determine the transition from one regime to another and with the boundaries to the various flow regimes that these criteria define. Experimentally we have focused on fine, cohesive powders, where the interparticle cohesive force dominates over gravitational force and where entrained air can cause moving powder to become fluidized.
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DOI: 10.1103/PhysRevLett.82.1156

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