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Influence of surface roughness on the cross-flow around a circular cylinder

Published online by Cambridge University Press:  29 March 2006

Elmar Achenbach
Elmar Achenbach
Affiliation:
Institut für Reaktorbauelemente der Kernforschungsanlage, Jülich GmbH
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Abstract

The influence of surface roughness on the cross-flow around a circular cylinder is the subject of the present experimental work. The investigations were carried out in a high-pressure wind tunnel, thus high Reynolds numbers up to Re = 3 × 106 could be obtained. Local pressure and skin friction distributions were measured. These quantities were evaluated to determine the total drag coefficient and the percentage of friction as functions of Reynolds number and roughness parameter. In addition the local skin friction distribution yields the angular position of boundary-layer transition from laminar to turbulent flow and the location of boundary-layer separation.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 46 , Issue 2 , 29 March 1971 , pp. 321 - 335
Copyright
© 1971 Cambridge University Press

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References

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