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Rotary oscillation control of a cylinder wake

Tokumaru, P. T. and Dimotakis, P. E. (1991) Rotary oscillation control of a cylinder wake. Journal of Fluid Mechanics, 224 . pp. 77-90. ISSN 0022-1120. doi:10.1017/S0022112091001659.

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Exploratory experiments have been performed on circular cylinders executing forced rotary oscillations in a steady uniform flow. Flow visualization and wake profile measurements at moderate Reynolds numbers have shown that a considerable amount of control can be exerted over the structure of the wake by such means. In particular, a large increase, or decrease, in the resulting displacement thickness, estimated cylinder drag, and associated mixing with the free stream can be achieved, depending on the frequency and amplitude of oscillation.

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Additional Information:© 1991 Cambridge University Press. Received 24 July 1989 and in revised form 19 July 1990. We would like to thank Hans Hornung, Tony Leonard, Richard Miake-Lye, Herb Gaebler, Harry Hamaguchi, and Pavel Svitek of GALCIT, as well as John Doyle of the Dept. of Electrical Engineering at Caltech, for their help and discussions. his research was sponsored by the Air Force Office of Scientific Research, URI AFOSR Grant No. F49620-86-C-0134.
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Air Force Office of Scientific Research (AFOSR)F49620-86-C-0134
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Official Citation:P. T. Tokumaru and P. E. Dimotakis (1991). Rotary oscillation control of a cylinder wake. Journal of Fluid Mechanics, 224, pp 77-90 doi:10.1017/S0022112091001659
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67622
Deposited By: Paul Dimotakis
Deposited On:04 Jun 2016 17:30
Last Modified:11 Nov 2021 03:51

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