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Instability, transition and turbulence in plane Couette flow with system rotation
KTH, School of Engineering Sciences (SCI), Mechanics.ORCID iD: 0000-0002-1146-3241
KTH, School of Engineering Sciences (SCI), Mechanics.
2005 (English)In: IUTAM Symposium on Laminar-Turbulent Transition and Finite Amplitude Solutions / [ed] Mullin, T; Kerswell, R, Springer Netherlands, 2005, Vol. 77, 173-193 p.Conference paper, Published paper (Refereed)
Abstract [en]

System rotation may have either stabilizing or destabilizing effects on shear flows depending on the direction of rotation vector as compared to the vorticity vector of mean flow. This study describes experimental results of laminar, transitional and turbulent plane Couette flow with both stabilizing and destabilizing system rotation. For laminar flow with destabilizing rotation roll cells appear in the flow which may undergo several different types of secondary instabilities, especially interesting is a repeating pattern of wavy structures followed by breakdown, thereafter roll cells reappear in a cyclic pattern. For higher Reynolds number roll cells appear also in a turbulent environment. It is also shown how stabilizing rotation may quench the turbulence completely.

Place, publisher, year, edition, pages
Springer Netherlands, 2005. Vol. 77, 173-193 p.
Series
Fluid Mechanics and Its Applications, ISSN 0926-5112 ; 77
Keyword [en]
transition, turbulence, system rotation
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-43192ISI: 000233714300010Scopus ID: 2-s2.0-84859879350ISBN: 1-4020-4048-2 (print)OAI: oai:DiVA.org:kth-43192DiVA: diva2:448051
Conference
Symposium on Non-Uniqueness of Solutions to the Navier-Stokes Equations and Their Connection with Laminar-Transition. Bristol, ENGLAND. AUG 09-11, 2004
Note
QC 20111014Available from: 2011-10-14 Created: 2011-10-13 Last updated: 2012-03-19Bibliographically approved

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Alfredsson, P. Henrik

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