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An axisymmetric model of flow in the annulus of a spouted bed of coarse particles. Model, experimental verification and residence time distribution
Author(s) -
Littman Howard,
Morgan Morris H.,
Narayanan Pallassana V.,
Kim Seung Jai,
Day JennYuan,
Lazarek G. M.
Publication year - 1985
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450630203
Subject(s) - annulus (botany) , mechanics , rotational symmetry , flow (mathematics) , residence time distribution , boundary value problem , materials science , geology , physics , mathematics , mathematical analysis , composite material
An axisymmetric model of flow in the annulus of a spouted bed of coarse particles which takes into account non‐Darcy flow and utilizes a new and general axial pressure boundary condition at the spout‐annulus interface is presented. The pressure boundary condition and the annulus pressure distribution are experimentally verified and the model used to calculate the residence time distribution and the flowrate at the top of the annulus. In addition, the average axial velocity profile in the annulus is calculated and compared with predictions of several one‐dimensional flow models.