Stripy patterns in low-Re turbulent plane Couette flow

Duguet Y, Schlatter P, Henningson DS (2010)

Publication Type: Conference contribution

Publication year: 2010

Publisher: Springer Verlag

Book Volume: 18

Pages Range: 159-164

Conference Proceedings Title: IUTAM Bookseries

Event location: SWE

ISBN: 9789048137220

DOI: 10.1007/978-90-481-3723-7_24

Abstract

We present for the first time a complete bifurcation diagram of plane Couette flow based on direct numerical simulation of the full Navier-Stokes equations. The use of an unusually large computational domain (800h×2h×356h) is crucial for the determination of transition thresholds, because it allows to reproduce spatiotemporal intermittency structures such as transient spots, turbulent bands, and laminar holes. The threshold in Re (based on the half-gap) is found to be Rec = 324±1, in very good agreement with available experimental data. This work points out that, at the onset of transition in Re, fragmented oblique patterns always emerge from the interaction of growing neighbouring spots. An analogy with thermodynamical phase transition seems relevant to describe the whole transition process. © 2010 Springer Science+Business Media B.V.

Authors with CRIS profile

Philipp Schlatter

Involved external institutions

Royal Institute of Technology / Kungliga Tekniska Högskolan (KTH) SE Sweden (SE)

How to cite

APA:

Duguet, Y., Schlatter, P., & Henningson, D.S. (2010). Stripy patterns in low-Re turbulent plane Couette flow. In IUTAM Bookseries (pp. 159-164). SWE: Springer Verlag.

MLA:

Duguet, Yohann, Philipp Schlatter, and Dan S. Henningson. "Stripy patterns in low-Re turbulent plane Couette flow." Proceedings of the 7th IUTAM Symposium on Laminar-Turbulent Transition, SWE Springer Verlag, 2010. 159-164.

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