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Transient creeping flow around fluid spheres
Author(s) -
Sy Francisco,
Lightfoot E. N.
Publication year - 1971
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.690170135
Subject(s) - bubble , spheres , mechanics , drop (telecommunication) , transient flow , two phase flow , transient (computer programming) , flow (mathematics) , materials science , thermodynamics , chemistry , physics , steady state (chemistry) , telecommunications , astronomy , computer science , operating system
A description of transient behavior of a spherical liquid drop rising or falling in a quiescent continuous field has been obtained by numerical methods. It is found that for the same disperse phase to continuous phase density ratio, the transient behavior of a liquid drop is usually intermediate between that of a gas bubble and a solid sphere. However, at the region where V / V ∞ of a solid sphere is approximately equal to that of a gas bubble, the liquid drop generally has a higher value of V / V ∞ than either the gas bubble or the solid sphere. For short times, behavior of a liquid drop is shown to be in agreement with that obtained from potential flow theory.