Artículo
Fluid to solid transition in magnetofluidized beds of fine powders
Autor/es | Valverde Millán, José Manuel
Espín Milla, Manuel Jesús Sánchez Quintanilla, Miguel Angel Castellanos Mata, Antonio |
Departamento | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo Universidad de Sevilla. Departamento de Física Aplicada II |
Fecha de publicación | 2010 |
Fecha de depósito | 2019-10-15 |
Publicado en |
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Resumen | Experimental observations on the fluid to solid transition in beds of magnetized fine particles
fluidized by gas are reported for different particle sizes dp. Contrarily to stability analysis
prediction, the fluidized ... Experimental observations on the fluid to solid transition in beds of magnetized fine particles fluidized by gas are reported for different particle sizes dp. Contrarily to stability analysis prediction, the fluidized bed is stabilized by a sufficiently strong magnetic field in the cross-flow configuration. As the strength H of the horizontally applied magnetic field is increased, particle chaining in the bubbling bed becomes apparent due to the induced attractive magnetostatic forces between the particles. In close analogy with magnetorheological fluids chain stability is determined by the balance between gas flow shear and the interparticle magnetostatic force. The jamming transition occurs at a gas velocity scaling proportionally to dp 2 H2 when the length of the stable chains reaches a critical size which is independent of particle size. |
Identificador del proyecto | FIS2006-03645
FQM 421 |
Cita | Valverde Millán, J.M., Espín Milla, M.J., Sánchez Quintanilla, M.A. y Castellanos Mata, A. (2010). Fluid to solid transition in magnetofluidized beds of fine powders. Journal of Applied Physics, 108 (5), 054903. |
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