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Prediction of axial mixing coefficients in rotating disc and asymmetric rotating disc extraction columns
Author(s) -
Kumar Arun,
Hartland Stanley
Publication year - 1992
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.5450700112
Subject(s) - mixing (physics) , phase (matter) , rotational speed , mechanics , continuous phase modulation , materials science , correlation coefficient , tracer , physics , classical mechanics , mathematics , quantum mechanics , telecommunications , statistics , computer science , nuclear physics
The correlation of axial mixing in the continuous and dispersed phases of rotating disc and asymmetric rotating disc columns is presented. Published experimental results on continuous‐phase axial mixing for both single‐ and two‐phase flows, obtained with tracer injection methods and by solute concentration profiles, are considered. The correlation developed is based on 1055 data points for 32 liquid systems obtained by 19 different investigators. The axial mixing in rotating disc columns is found to be up to 20% larger than in asymmetric rotating disc columns. Data for the dispersed phase are harder to correlate than those for the continuous phase. Since the available results are often contradictory, the correlation for the dispersed‐phase coefficient is thus less accurate than that for the continuousphase coefficient.