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Mass transfer from large single bubbles at high reynolds numbers
Author(s) -
Nate Takayuki,
Himmelblau D. M.
Publication year - 1967
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.690130420
Subject(s) - reynolds number , bubble , interphase , mechanics , sherwood number , mass transfer , conical surface , work (physics) , mixing (physics) , flow (mathematics) , chemistry , thermodynamics , materials science , analytical chemistry (journal) , physics , chromatography , turbulence , composite material , genetics , quantum mechanics , nusselt number , biology
Single bubbles of carbon dioxide were formed in a fixed position surrounded by a thin conical film of water flowing at average film Reynolds numbers in the range of 40 to 300. Measurements of interphase mass transfer at 32°C. and various bubble pressures agreed with predicted values only for the smallest bubbles. For larger bubbles, mixing perpendicular to the bubble interface was enhanced by waves, believed to be generated by the unstable interface. A comparison of interphase transfer coefficients between this investigation and previous work indicated that the bubbles at the lowest flow rates qualitatively fell in line with other measurements, but that the highest water flow rates gave distinctly higher coefficients.