Edge state in pipe flow experiments

A. De Lózar, F. Mellibovsky, M. Avila, B. Hof, Physical Review Letters 108 (2012).

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Journal Article | Published
Author
de Lózar, Alberto; Mellibovsky, Fernando; Avila, Marc; Hof, BjörnIST Austria
Abstract
Recent numerical studies suggest that in pipe and related shear flows, the region of phase space separating laminar from turbulent motion is organized by a chaotic attractor, called an edge state, which mediates the transition process. We here confirm the existence of the edge state in laboratory experiments. We observe that it governs the dynamics during the decay of turbulence underlining its potential relevance for turbulence control. In addition we unveil two unstable traveling wave solutions underlying the experimental flow fields. This observation corroborates earlier suggestions that unstable solutions organize turbulence and its stability border.
Publishing Year
Date Published
2012-05-21
Journal Title
Physical Review Letters
Volume
108
Issue
21
IST-REx-ID

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De Lózar A, Mellibovsky F, Avila M, Hof B. Edge state in pipe flow experiments. Physical Review Letters. 2012;108(21). doi:10.1103/PhysRevLett.108.214502
De Lózar, A., Mellibovsky, F., Avila, M., & Hof, B. (2012). Edge state in pipe flow experiments. Physical Review Letters, 108(21). https://doi.org/10.1103/PhysRevLett.108.214502
De Lózar, Alberto, Fernando Mellibovsky, Marc Avila, and Björn Hof. “Edge State in Pipe Flow Experiments.” Physical Review Letters 108, no. 21 (2012). https://doi.org/10.1103/PhysRevLett.108.214502.
A. De Lózar, F. Mellibovsky, M. Avila, and B. Hof, “Edge state in pipe flow experiments,” Physical Review Letters, vol. 108, no. 21, 2012.
De Lózar A, Mellibovsky F, Avila M, Hof B. 2012. Edge state in pipe flow experiments. Physical Review Letters. 108(21).
De Lózar, Alberto, et al. “Edge State in Pipe Flow Experiments.” Physical Review Letters, vol. 108, no. 21, American Physical Society, 2012, doi:10.1103/PhysRevLett.108.214502.

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