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Dadun > Depósito Académico > Facultad de Ciencias > Departamento de Física y Matemática Aplicada > DA - Ciencias - Física - Artículos de Revista >

Segregation pattern competition in a thin rotating drum
Autor(es) : Mullin, T. (T.)
Peixinho, J. (J.)
Zuriguel, I. (Iker)
Fecha incorporación: 14-may-2009
Editorial : American Physical Society
ISSN: 1063-651X
Cita: Zuriguel I, Peixinho J, Mullin T. Segregation pattern competition in a thin rotating drum. Phys Rev E Stat Nonlin Soft Matter Phys. 2009 May;79(5 Pt 1):051303.
Resumen
Results are presented of an experimental investigation into patterned size segregation of binary granular mixtures in a thin rotating drum that is half full. It is observed that streaks of small particles are formed within regions of large ones where the integer number of streaks is fixed over a range of rotation rate of the drum. Different patterns form in adjacent parameter ranges and the dynamics associated with the exchange between neighboring states is analyzed using angular spatiotemporal diagrams. These help to reveal properties of the merging mechanism for streaks of small particles. We report experimental evidence that the merging of streaks is mediated by the movement of a surplus material in a direction opposite to that of the rotation of the drum. The excess material is distributed throughout the pattern and the extra streak eventually disappears.
Enlace permanente: http://hdl.handle.net/10171/4106
Aparece en las colecciones: DA - Ciencias - Física - Artículos de Revista

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Fichero:  2009.PRE79.051303.pdf
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