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The effect of large-eddy breakup devices on oncoming vorticity

Published online by Cambridge University Press:  20 April 2006

A. P. Dowling
A. P. Dowling
Affiliation:
University Engineering Department, Trumpington Street, Cambridge CB2 1 PZ
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Abstract

Experiments have shown that a large-eddy breakup device consisting of a short splitter plate placed in the turbulent boundary layer over a plane wall can lead to a reduction in drag. We investigate the idealized problem of an incident line vortex convected past such a device. The vorticity shed from the trailing edge of the plate is found to cancel the effect of the incident vortex and to reduce velocity fluctuations significantly in the vicinity of the wall.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 160 , November 1985 , pp. 447 - 463
Copyright
© 1985 Cambridge University Press

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