Turbulent flow around a rotating cylinder in a quiescent fluid |
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Authors: | M Dierich K Gersten F Schlottmann |
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Institution: | Ruhr-Universit?t Bochum Institut für Thermo- und Fluiddynamik D-44780 Bochum, Germany, DE
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Abstract: | Hot-wire measurements have been carried out in the turbulent flow around a rotating circular cylinder in still air for Reynolds
numbers Re=∣U
w
∣D/ν=1.5×104 to 105. The experimental results confirm the analysis derived by asymptotic theory for high Reynolds numbers. Two different ways
of deriving the friction law from the experiments (via shear stress and via velocity distribution) resulted practically in
the same law. It is shown, that in spite of the curvature of the streamlines the universal logarithmic velocity distribution
is still valid near the wall.
Received: 8 August 1996/Accepted: 24 April 1998 |
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