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Longitudinal mixing in a vibrating‐sieve‐plate column two‐phase flow
Author(s) -
Nemecek Milan,
Prochazka Jaroslav
Publication year - 1974
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.5450520607
Subject(s) - mixing (physics) , mechanics , flow (mathematics) , dispersion (optics) , sieve (category theory) , phase (matter) , materials science , stage (stratigraphy) , plate column , geology , physics , optics , thermodynamics , mathematics , paleontology , combinatorics , quantum mechanics
Longitudinal mixing in the continuous phase of a vibrating‐plate extractor was examined. Particular attention was focused on the effect of the flow of the dispersed phase, which turned out to be of major importance. Three regimes displaying distinctly different character of longitudinal mixing may be observed. The flow within a stage was studied in detail and it was shown that the stage could split into two regions of different character of the flow. A model was proposed which makes up the total effect of longitudinal mixing from the back flow through the plate plus axial dispersion within the stage. Correlations have been proposed relating the axial dispersion coefficient to the hold‐up and droplet diameter.