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Newtonian power curve and drop size distributions for vibromixers
Author(s) -
Lo Mei Y. A.,
Gierczycki Andrej T.,
TitchenerHooker Nigel J.,
Shamlou Parviz Ayazi
Publication year - 1998
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.5450760317
Subject(s) - mechanics , sauter mean diameter , non newtonian fluid , reynolds number , newtonian fluid , drop (telecommunication) , turbulence , impeller , thermodynamics , materials science , mathematics , physics , engineering , mechanical engineering , nozzle
Power input data are presented for a twin flat disk up‐and‐down moving (vibromixer) impeller operating in a small vessel with a range of Newtonian liquids. Vibromixer power number and Reynolds number are defined and are used to establish the Newtonian power curve for this type of mixer. Drop size distributions are presented for xylene‐in‐water dispersions under turbulent flow conditions in the vibromixer and are shown to vary with the maximum velocity of the disk (2π Af ). The Sauter mean drop diameter of the distribution is related to the vibromixer Weber number, ( We =ρ(2π Af ) 2 D /σ), by an equation of the type d 32 / D = C (We) −3/5 with the coefficient C = 0.37.