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Maximum stable drop diameter in stirred dispersions
Author(s) -
Lam Andrew,
Sathyagal A. N.,
Kumar Sanjeev,
Ramkrishna D.
Publication year - 1996
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.690420606
Subject(s) - breakage , drop (telecommunication) , mechanics , transient (computer programming) , thermodynamics , inverse , materials science , chemistry , mathematics , physics , composite material , geometry , engineering , computer science , mechanical engineering , operating system
Abstract Transient drop‐size distributions of stirred dispersions undergoing breakage were experimentally measured at long stirring times. The results show that drops continue to break the entire duration of the experiment (at least up to 10 h) and force a reevaluation of the widely held concept of a maximum stable drop diameter, d max . Transient distributions show the existence of self‐similarity, which is the same as that observed in transient distributions obtained at short times (up to ∼ 1 h, Sathyagal et al., 1995b) indicating that the nature of breakage does not change with time. The existence of similarity at long stirring times can be used to obtain good estimates of breakage rates of small drops by an inverse problem procedure.