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Multiphase Science and Technology
SJR: 0.183 SNIP: 0.483 CiteScore™: 0.5

ISSN Imprimer: 0276-1459
ISSN En ligne: 1943-6181

Multiphase Science and Technology

DOI: 10.1615/MultScienTechn.v21.i1-2.20
pages 13-24

CFD PREDICTION OF BUBBLE BEHAVIOR IN TWO-DIMENSIONAL GAS-SOLID FLUIDIZED BEDS

A. Busciglio
Dipartimento di Ingegneria Chimica dei Processi e dei Materiali, Università degli Studi di Palermo, Palermo, Italy
G. Vella
Istituto di Applicazioni e Impianti Nucleari Facolta di Ingegneria - Universita di Palermo Viale delle Scienze, 90128 Palermo, Italy
G. Micale
Dipartimento di Ingegneria Chimica dei Processi e dei Materiali, Università degli Studi di Palermo, Palermo, Italy
L. Rizzuti
Dipartimento di Ingegneria Chimica dei Processi e dei Materiali, Università degli Studi di Palermo, Palermo, Italy

RÉSUMÉ

This work focuses on the computational fluid dynamics (CFD) simulation of a laboratory-scale, two-dimensional fluidized bed and the relevant experiments in order to validate the prediction capability of the adopted codes and models. Both experimental and computational quantitative data were analyzed by means of an original digital image analysis technique, allowing for coherent comparison of computational and experimental results. In particular, this work analyzes the capability of the CFD simulations in predicting the fluctuating behavior of bubbling fluidized beds by means of frequency analysis of bubble-related phenomena.

RÉFÉRENCES

  1. Busciglio, A., Vella, G., Micale, G., and Rizzuti, L., Analysis of the Bubbling Behavior of 2-D Gas Fluidized Beds.

  2. Busciglio, A., Vella, G., Micale, G., and Rizzuti, L., Analysis of the Bubbling Behaviour of 2-D Gas Solid Fluidized Beds.

  3. Duhamel, P. and Vetterli, M., Fast Fourier Transforms: A Tutorial Review and a State of the Art. DOI: 10.1016/0165-1684(90)90158-U

  4. Gidaspow, D., Multiphase Flow and Fluidization.

  5. Johnsson, F., Zijerveld, R. C., Schouten, J. C., van den Bleek, C. M., and Leckner, B., Characterization of Fluidization Regimes by Time-Series Analysis of Pressure Fluctuations.

  6. Lu, X. and Li, H., Wavelet Analysis of Pressure Fluctuation Signals in a Bubbling Fluidized Bed. DOI: 10.1016/S0301-9322(99)00028-2

  7. Wen, C. Y. and Yu, Y. H., Mechanics of Fluidization.

  8. Xu, J., Bao, X., Wei, W., Gang, S., Shen, S., Bi, H. T., Grace, J. R., and Lim, C. J., Statistical and Frequency Analysis of Pressure Fluctuations. DOI: 10.1016/j.powtec.2004.02.003

  9. Zhong, W. and Zhang, M., Pressure Fluctuation Frequency Characteristics in a Spout-Fluid Bed by Modern Arm Power Spectrum Analysis. DOI: 10.1016/j.powtec.2005.01.007


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