Localized edge states in the asymptotic suction boundary layer
Khapko T, Kreilos T, Schlatter P, Duguet Y, Eckhardt B, Henningson DS (2013)
Publication Type: Journal article
Publication year: 2013
Journal
Book Volume: 717
Pages Range: R61-R611
DOI: 10.1017/jfm.2013.20
Abstract
The dynamics on the laminar-turbulent separatrix is investigated numerically for boundary-layer flows in the subcritical regime. Constant homogeneous suction is applied at the wall, resulting in a parallel asymptotic suction boundary layer (ASBL). When the numerical domain is sufficiently extended in the spanwise direction, the coherent structures found by edge tracking are invariably localized and their dynamics shows bursts that drive a remarkable regular or irregular spanwise dynamics. Depending on the parameters, the asymptotic dynamics on the edge can be either periodic in time or chaotic. A clear mechanism for the regeneration of streaks and streamwise vortices emerges in all cases and is investigated in detail.
Authors with CRIS profile
Involved external institutions
Royal Institute of Technology / Kungliga Tekniska Högskolan (KTH)
Sweden (SE)
Philipps-Universität Marburg
Germany (DE)
University of Paris 11 - Paris-Sud / Université Paris XI Paris-Sud
France (FR)
Sweden (SE)
Philipps-Universität Marburg
Germany (DE)
University of Paris 11 - Paris-Sud / Université Paris XI Paris-Sud
France (FR)
How to cite
APA:
Khapko, T., Kreilos, T., Schlatter, P., Duguet, Y., Eckhardt, B., & Henningson, D.S. (2013). Localized edge states in the asymptotic suction boundary layer. Journal of Fluid Mechanics, 717, R61-R611. https://doi.org/10.1017/jfm.2013.20
MLA:
Khapko, T., et al. "Localized edge states in the asymptotic suction boundary layer." Journal of Fluid Mechanics 717 (2013): R61-R611.
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