On the resonant nature of the breakdown of a laminar boundary layer
- 1 November 1987
- journal article
- Published by Cambridge University Press (CUP) in Journal of Fluid Mechanics
- Vol. 184, 43-74
- https://doi.org/10.1017/s0022112087002805
Abstract
The first part of this paper (§2) briefly reviews the history of the idea of the resonant nature of laminar-boundary-layer breakdown. In the second part a new wave-resonance concept of the breakdown mechanism is proposed. The existing experimental data on the laminar boundary layer (and plane channel flow) breakdown are analysed from the viewpoint of this concept and are compared with the well-known local high-frequency secondary-instability concept. The results testify to the correctness of the proposed wave-resonant concept for the initial stages of breakdown, in particular for the K-regime of transition up to the spike formation and its doubling.Keywords
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