Abstract
In the transitional regime turbulence in pipe, channel and Couette flow appears in localized patches, sometimes called spots or puffs. These have a fixed length and a propagation speed which depends on the Reynolds number. It has been demonstrated in recent studies of pipe flow that such turbulent puffs have a finite lifetime and that their decay is a memoryless process [1, 2]. Generally this behaviour is consistent with the assumption that the turbulent state forms a chaotic saddle in phase space.
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© 2009 Springer-Verlag Berlin Heidelberg
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Hof, B., de Lozar, A. (2009). From localized to expanding turbulence. In: Eckhardt, B. (eds) Advances in Turbulence XII. Springer Proceedings in Physics, vol 132. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03085-7_31
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DOI: https://doi.org/10.1007/978-3-642-03085-7_31
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