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Particle Fluctuation Velocity in Gas Fluidized Beds - Fundamental Models Compared to Recent Experimental Data

Published online by Cambridge University Press:  01 February 2011

G. D. Cody
G. D. Cody*
Affiliation:
Visiting Professor Mechanical and Aerospace Engineering, Rutgers University Mail Address: 30 Bainbridge St, Princeton NJ 08540, E-mail; gdcodypva@att.net
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Abstract

The first measurements of the mean squared fluctuation velocity, or granular temperature, of monodispersed glass spheres in gas fluidized beds were recently obtained by two independent techniques: Power Spectral analysis of wall vibrational energy excited by random particle impact or Acoustic Shot Noise (ASN), and Diffusing Wave Spectroscopy (DWS) of reflected laser light multiply scattered by random particle motion. We explore the relevance of this data to the initial stability of the uniform fluidized state and to recent fundamental models for the magnitude, gas flow, and particle diameter dependence of the steady state granular temperature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 627: Symposium BB – The Granular State , 2000 , BB4.8
Copyright
Copyright © Materials Research Society 2000

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References

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