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Friction factors for a tube rotating about its own axis
Author(s) -
Harvey P. H.,
Nandapurkar S. S.,
Holland F. A.
Publication year - 1971
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.5450490207
Subject(s) - laminar flow , turbulence , mechanics , tube (container) , reynolds number , rotation (mathematics) , flow (mathematics) , friction factor , pressure drop , pipe flow , physics , materials science , mathematics , geometry , composite material
Experiments have been carried out to determine pressure drops and flow patterns for fluids flowing through a tube rotating about its own axis. A newly developed pressure tap enabled the determination of pressure drops between two points in a rotating tube. The effect of rotation is to increase the friction factor in the laminar flow region and to decrease it in the turbulent flow region. Rotation also tends to suppress turbulence and to extend the laminar flow region to higher Reynolds numbers.