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Mostrando ítems 21-26 de 26
Artículo
Effect of particle size and interparticle force on the fluidization behavior of gas-fluidized beds
(American Physical Society, 2003)
Gas-fluidized powders of fine particles display a fluidlike regime in which the bed does not have a yield strength, it expands uniformly as the gas velocity is increased and macroscopic bubbles are absent. In this paper ...
Artículo
Cohesion and Internal Friction of Fine Glass Beads as Affected by Small Intensity Vertical Vibration
(2009)
We have used a novel centrifuge powder tester to obtain the angle of internal friction and cohesion of fine glass beads as affected by previous vibration in the vertical direction. In the experimental procedure we use a ...
Artículo
Mesoscopic structuring and yield stress of magnetofluidized fine particles
(IOP Publishing Ltd., 2009-10)
The fluidization behavior of a bed of fine magnetizable particles excited by an externally applied magnetic field is found to depend on the aggregative nature of the particles before the field was applied. Usually nonaggregated ...
Artículo
Pumping of liquids with traveling-wave electroosmosis
(AIP Publishing, 2005)
Net flow of electrolyte induced by a traveling-wave electric potential applied to an array of microelectrodes is reported. Two fluid flow regimes have been observed: at small-voltage amplitudes the fluid flow follows the ...
Artículo
Self-Diffusion in a Gas-Fluidized Bed of Fine Powder
(American Physical Society, 2001)
We have investigated the self-diffusion in a stable gas-fluidized bed of fine powder. Two regimes have been observed: for gas velocities yg above the minimum fluidization velocity ym and below a critical gas velocity yc ...
Artículo
High viscosity gas fluidization of fine particles: An extended window of quasihomogeneous flow
(American Physical Society, 2006)
We explore the role of gas viscosity in the behavior of gas-fluidized beds of fine powders by means of experimental measurements using nitrogen and neon as fluidizing gases, and theoretical considerations. The existence ...