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Fluid and particle entrainment into vertical jets in fluidized beds
Author(s) -
Merry J. M. D.
Publication year - 1976
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690220214
Subject(s) - entrainment (biomusicology) , mechanics , jet (fluid) , fluidized bed , particle (ecology) , fluid dynamics , flow (mathematics) , two fluid model , particle flow , geology , physics , thermodynamics , discrete element method , oceanography , rhythm , acoustics
Abstract The flow of particles and fluid in the vicinity of vertical jets in fluidized beds was studied by using a two‐dimensional bed of lead shot fluidized by water. It was found that both interstitial fluid and solid particles are entrained into the jet as it expands and penetrates into the bed. An approximate mathematical model is developed to describe the particle and fluid flow fields observed experimentally; from this, an expression is derived for rates of entrainment into vertical jets in fluidized beds, and a model is postulated for the flow fields around grid jets.