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Stability of moving surfaces in fluid systems with heat and mass transport II. Combined effects of transport and density difference between Phases
Author(s) -
Miller Clarence A.
Publication year - 1973
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.690190504
Subject(s) - instability , mass transfer , vaporization , surface tension , convection , thermodynamics , chemistry , cavitation , heat transfer , mechanics , combustion , materials science , physics , organic chemistry
Stability of interfaces moving as a result of phase transformation or mass transfer is considered. Effects of transport and of the density difference between phases known to significantly influence stability during solidification and combustion respectively are here studied theoretically in fluid systems. The analysis indicates that instability is possible during vaporization of liquids under vacuum and perhaps during growth of cavitation bubbles. But except when interfacial tension is very low, instability is unlikely during mass transfer in liquid‐liquid systems because the density difference between phases is small. A density difference can also produce cellular convection at an unstable interface during solidification.