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The friction factor–Reynolds number relation for the steady flow of pseudoplastic fluids through rectangular ducts. Part I. Theory
Author(s) -
Wheeler John A.,
Wissler Eugene H.
Publication year - 1965
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.690110208
Subject(s) - reynolds number , mechanics , friction factor , shear thinning , friction loss , duct (anatomy) , mathematics , power law fluid , shear stress , physics , materials science , flow (mathematics) , classical mechanics , thermodynamics , turbulence , rheology , anatomy , medicine
A finite difference technique is used to calculate the velocity profile, maximum shear stress, and friction factor‐Reynolds number product for a power‐law, pseudoplastic fluid flowing through a cylindrical duct of rectangular cross section. It is assumed that the motion is rectilinear. A very simple friction factor‐Reynolds number correlation is obtained for the special case of a square duct.