Magnetic liquid stabilization of fluidization in a bed of nonmagnetic spheres

Autor:	G. Ciprios, R.E. Rosensweig
Rok vydání:	1991
Předmět:	Ferrofluid Work (thermodynamics) Chemistry General Chemical Engineering Thermodynamics Mechanics Magnetic field Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Magnetization Mean field theory Fluidized bed SPHERES Fluidization
Zdroj:	Powder Technology. 64:115-123
ISSN:	0032-5910
DOI:	10.1016/0032-5910(91)80011-7
Popis:	This work concerns a novel phenomenon in which magnetization of the fluidizing fluid, a ferrofluid, stabilizes the state of uniform fluidization in a bed of nonmagnetic particles. Stability analysis of the two-phase flow using mean field theory to determine magnetic forces acting on components of the bed mixture is employed to predict onset of transition from the stably fluidized to the unstably fluidized state. Computations of predicted transition velocity vs. applied induction exhibit general agreement with data in support of assumptions of the continuum theory. Concepts for process applications are described that utilize the novel features of the beds in contactors for the exchange of mass and heat.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2cab2ac7aaee1dfd1b3a49a806d42a1b https://doi.org/10.1016/0032-5910(91)80011-7 Zobrazit plný text záznamu