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Generalized correlation for bubble motion
Author(s) -
Rodrigue D.
Publication year - 2001
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.690470106
Subject(s) - bubble , reynolds number , surface tension , viscosity , mechanics , range (aeronautics) , newtonian fluid , motion (physics) , thermodynamics , maximum bubble pressure method , viscous liquid , function (biology) , mathematics , classical mechanics , physics , materials science , turbulence , evolutionary biology , biology , composite material
The motion of a single gas bubble rising steadily in an uncontaminated Newtonian viscous fluid of infinite extent is reviewed. Using experimental data gathered from the literature over the past century, a data bunk is set up for bubble velocities as a function of their diameters. These data provided a very broad range of liquid properties and bubble hydrodynamic regimes as density (722–1,380 kg/m 3 ), viscosity (2.2×10 −4 −18 Pa·s), surface tension (15.9–91.0 mN/m), Reynolds number (1.9×10 −7 −1.1 × 10 4 ), and Morton number (1.0×10 −11 −1.0×10 7 ). From a dimensional analysis, a single equation is proposed to predict bubble velocities. The simplicity and good precision over the whole range of parameters facilitate its use in design calculations of chemical engineering.