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Axial dispersion in gases flowing through small bore helical column
Author(s) -
Singh P. C.,
Singh S.
Publication year - 1983
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.5450610219
Subject(s) - dimensionless quantity , laminar flow , dispersion (optics) , reynolds number , mechanics , chemistry , axial compressor , flow (mathematics) , tube (container) , materials science , thermodynamics , analytical chemistry (journal) , physics , chromatography , optics , turbulence , composite material , gas compressor
The results of an experimental study on the axial dispersion of gases flowing in helical columns under laminar flow conditions are reported. The ranges of variables covered are 26.6 < λ < 98; 10 < N Re < 100; 0.176 < N Sc < 1.359. The measured dispersion coefficients are correlated with Reynolds, Schmidt and Dean groups. A single dimensionless parameter, N Dc ( N Se 0,5 , was found to correlate the data well. Up to N De ( N Sc ) 0,5 =10, dispersions in straight and coiled tubes exhibit very similar axial dispersion behavior.