Title:
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Streamwise-localized solutions at the onset of turbulence in pipe flow
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Author:
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Àvila Cañellas, Marc; Mellibovsky Elstein, Fernando; Roland, N.; Hof, Björn
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Other authors:
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Escola d'Enginyeria de Telecomunicació i Aeroespacial de Castelldefels; Universitat Politècnica de Catalunya. DF - Dinàmica No Lineal de Fluids |
Abstract:
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Although the equations governing fluid flow are well known, there are no analytical expressions that describe the complexity of turbulent motion. A recent proposition is that in analogy to low dimensional chaotic systems, turbulence is organized around unstable solutions of the governing equations which provide the building blocks of the disordered dynamics. We report the discovery of periodic solutions which just like intermittent turbulence are spatially localized and show that turbulent transients arise from one such solution branch. 2013 American Physical Society. |
Subject(s):
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-Àrees temàtiques de la UPC::Física::Física de fluids -Fluid mechanics -bifurcation -chaos -transition to turbulence -Turbulence
Chaotic systems -Mecànica de fluids -Fluix bifàsic |
Rights:
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Document type:
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Article - Published version Article |
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