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Some observations on skin friction and velocity profiles in fully developed pipe and channel flows

Published online by Cambridge University Press:  29 March 2006

V. C. Patel
Affiliation:
Engineering Department, University of Cambridge
M. R. Head
Affiliation:
Engineering Department, University of Cambridge

Abstract

Measurements of skin friction and mean-velocity profiles have been made in fully developed flows in pipes and channels in the Reynolds number range 1000 < Re < 10000. These measurements, and observations of hot-wire signals, indicate rather remarkable differences between two-dimensional and axially symmetric flows and also make it difficult to give a precise definition of the term ‘fully developed turbulent flow’.

Type
Research Article
Copyright
© 1969 Cambridge University Press

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