The delay of turbulent boundary layer separation by oscillatory active control
- 1 February 1989
- journal article
- Published by AIP Publishing in Physics of Fluids A: Fluid Dynamics
- Vol. 1 (2) , 179-181
- https://doi.org/10.1063/1.857555
Abstract
The flow outside a solid wedge that abruptly diverges at an angle of 18° was investigated experimentally. A turbulent boundary layer, which separated at the discontinuity and turned into a mixing layer downstream of it, reattached as a result of harmonic excitation at the apex of the wedge. Preliminary results indicate that this might be an effective way to delay separation of turbulent and laminar boundary layers.Keywords
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