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High-Reynolds shallow flow over an inclined sinusoidal bottom

Plumerault, Louis-Romain and Astruc, Dominique and Thual, Olivier High-Reynolds shallow flow over an inclined sinusoidal bottom. (2010) Physics of Fluids, vol. 22 (n° 5). pp. 054110-1-054110-5. ISSN 1070-6631

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Official URL: http://dx.doi.org/10.1063/1.3407668

Abstract

An experimental study of a turbulent free-surface shallow flow over an inclined sinusoidal bottom with a fixed corrugation amplitude is presented. A parametric analysis is performed by varying both the inclination angle and the Reynolds number. We show that a “Pulse-Waves” regime, dominant for Reynolds smaller than 4 000, coexists with a “Roll-Waves” regime, which becomes dominant above this value. The relative energy of the waves is quantified in the parameter space. At Reynolds numbers larger than 8 000, these wave instabilities disappear.

Item Type:Article
Additional Information:Thanks to AIP editor. The definitive version is available at http://aip.org/. The original PDF of the article can be found at http://pof.aip.org/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
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Deposited By: Olivier THUAL
Deposited On:05 Nov 2012 16:31

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