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Secondary flows in ducts of square cross-section

Published online by Cambridge University Press:  29 March 2006

B. E. Launder  and
W. M. Ying
B. E. Launder
Affiliation:
Mechanical Engineering Department, Imperial College, London
W. M. Ying
Affiliation:
Mechanical Engineering Department, Imperial College, London
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Abstract

The paper presents the outcome of experimental research on turbulence-induced secondary flows in square-sectioned ducts. The main emphasis of the experiments has been on the measurement of the secondary flows in a duct with equally roughened surfaces. Here the secondary flow is a substantially larger proportion of the axial flow than is the case in smooth-walled ducts. With the secondary velocities normalized by the friction velocity, however, the resultant profiles for smooth and rough surfaces are the same, within the precision of the measurements.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 54 , Issue 2 , 25 July 1972 , pp. 289 - 295
Copyright
© 1972 Cambridge University Press

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References

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