Premium
Cocurrent stratified flow of immiscible liquids
Author(s) -
Darby Ron,
Akers W. W.
Publication year - 1966
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.690120528
Subject(s) - drag coefficient , hagen–poiseuille equation , stratified flow , drag , turbulence , mechanics , flow (mathematics) , thermodynamics , couette flow , phase (matter) , materials science , physics , quantum mechanics
Velocity profile data were taken in both phases of a cocurrent stratified flow system of two immiscible liquids in the turbulent regime. The data were correlated by a method which combined Pai's results for Poiseuille and Couette flows between parallel plates, resulting in values of the drag coefficients for the wall and interface for both phases. These and other dependent parameters were correlated with flow conditions over a range of flow rates for both phases. Correlations of all parameters except the interfacial drag coefficient were found to be symmetrical; that is, a given correlation applied equally well to data from either phase. The interfacial drag coefficient, on the other hand, depended primarily upon the flow intensity of the upper phase, in a manner which was further dependent upon which phase was the faster.