a Kiani
r Sotudeh-Gharebagh - Corresponding Author’s Address: Oil and Gas Centre of Excellence, Multiphase Systems Research Laboratory,Department of Chemical Engineering, University of Tehran, P.O. Box ۱۱۱۵۵-۴۵۶۳, Tehran, Iran
n Mostoufi

Formation and destruction of clusters in the freeboard has extensive impact on the hydrodynamics of a fluidized bed. In this study, fiber optic probe and discrete wavelet analysis have been used to predict cluster size distribution in the freeboard of a fluidized bed. Furthermore, clusters sizedistribution has been investigated at different axial and radial positions. The cluster size distribution became wider in higher axial position, indicating the size of clusters increase. Also,size of the clusters decreases in the vicinity of the wall. The result in this study can be used to identify the hydrodynamics of the fluidized bed

Cluster, Fluidized bed, Fiber optic, Wavelet analysis