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The Fluidlike Behavior of Granular Materials Fluidized by Liquids

Chapter
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Part of the Particle Technology Series book series (POTS, volume 18)

Abstract

In contrast with the nonbubbling, solid-like behavior exhibited by gas-fluidized beds of slightly cohesive powders stably fluidized (Geldart A), most beds of noncohesive granular materials can be fluidized by a liquid in a nonbubbling, fluid-like regime. Accordingly, gas-fluidized beds and liquid-fluidized beds have been traditionally considered as separate systems displaying radically different behaviors. In this chapter, empirical observations on liquid-fluidized beds are reviewed as well as empirical criteria formulated to predict the onset of macroscopic bubbling in these systems. An insight is given into the gas-fluidization behavior of fine conditioned powders, revealing a straightforward analogy with the nonbubbling fluid-like behavior of liquid-fluidized beds despite being fluidized by a gas.

Keywords

Particle Image Velocimetry Froude Number Lead Shot Water Bubble Bubble Breakup 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Faculty of PhysicsUniversity of SevillaSevillaSpain

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