Journal ArticleDOI
Shock waves as a criterion for the transition from homogeneous to heterogeneous fluidization
J. Verloop,P.M. Heertjes +1 more
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In this paper, the elasticity modulus of a fluidized bed has been calculated from a drag force-interparticle distance relation, and a satisfactory criterion for the transition between homogeneous and heterogeneous fluidization has been obtained.About:
This article is published in Chemical Engineering Science.The article was published on 1970-05-01. It has received 100 citations till now. The article focuses on the topics: Fluidization & Shock wave.read more
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Types of gas fluidization
TL;DR: The behavior of solids fluidized by gases falls into four clearly recognizable groups, characterized by density difference (ϱs −ϱf) and mean particle size as discussed by the authors, and a numerical criterion which distinguishes between groups A and B has been devised and agrees well with published data.
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A new theory of the instability of a uniform fluidized bed
TL;DR: In this article, the form of the momentum equation for one-dimensional (vertical) unsteady mean motion of solid particles in a fluidized bed or a sedimenting dispersion is established from physical arguments.
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Nonlinear mechanics of fluidization of beds of spherical particles
TL;DR: In this article, the authors describe a local rearrangement mechanism in which one sphere is captured in the wake of the other, and two local mechanisms are involved: drafting and kissing and tumbling into stable cross stream arrays.
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A fully predictive criterion for the transition between particulate and aggregate fluidization
P.U. Foscolo,L.G. Gibilaro +1 more
TL;DR: In this article, a simple general model for the interaction between a particle and the fluid in a fluidized suspension, enables a hydrodynamic criterion for the onset of bubbling in fluidized beds to be formulated in a compact and fully predictive form.
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Solitons, solitary waves, and voidage disturbances in gas-fluidized beds
S. E. Harris,D. G. Crighton +1 more
TL;DR: In this paper, the authors consider the evolution of an initially small voidage disturbance in a gas-fluidized bed and examine the growth of a single KdV voidage soliton, following its development through several different regimes.
References
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On the mathematics of fluidization Part 1. Fundamental equations and wave propagation
TL;DR: In this article, a mathematical model which describes the phenomena on a continuum basis is deduced, and it is shown that the system is unstable to small internal disturbances, and surface waves can be propagated (with attenuation) in the composite fluid and these waves for fluidized beds with a high ratio of solids density to fluid density are stable.
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The nature of aggregative and particulate fluidization
T. B. Anderson,R. Jackson +1 more