par Masson, Henri
Référence Chemical engineering communications, 21, 4-6, page (311-328)
Publication Publié, 1983-06
Article révisé par les pairs
Résumé : The interpretation of the signals generated by a double probe may be done by the three characteristic times method: t1 the time duration of the pulses; t2the time shift between the signals of the two probes; t3 the time interval between two pulses on one channel. Each of these times is largely dispersed and the corresponding histograms may be constructed. The present work is a trial to go over from the time histograms to physical properties of the bubbles combining a Monte-Carlo simulation and a flexible simplex optimisation procedure. As a result, the percentage of oblique bubbles cutting just one level, the bubble size distribution, the average velocity-size relation, and the individual dispersion around it may be defined. The procedure is finally applied to experimental results obtained with a light probe in a fluid bed of glass beads. © 1983, Taylor & Francis Group, LLC. All rights reserved.