Premium
Drag and mass transfer in a creeping flow of a carreau fluid over drops or bubbles
Author(s) -
Jarzebski Andrzej B.,
Malinowski Janusz J.
Publication year - 1987
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.5450650425
Subject(s) - carreau fluid , drag , shear thinning , mechanics , bubble , mass transfer , drag coefficient , viscosity , fluid dynamics , drop (telecommunication) , pressure drop , parasitic drag , thermodynamics , non newtonian fluid , materials science , physics , computer science , telecommunications
Estimates for the upper bound on the drag coefficient for a single drop or bubble or a swarm of drops or bubbles translating in a Carreau fluid are obtained using variational principles. The effects of a wide range of shear thinning properties, holdup and viscosity ratios on drag and mass transfer rate are discussed. Recently published predictions of approximate analytical solutions are verified and found to be reasonable if shear thinning behaviour is not pronounced.