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The mixing layer instability of wind over a flexible crop canopy

Abstract : A coupled fluid-stucture model is proposed to study the dynamics of a flexible crop canopy exposed to wind. The canopy is represented by an elastic continuous medium and coupled to the wind mixing layer through a drag load. The mixing layer instability is shown to remain the principle instability mechanism but its characteristics are modified when taking into account the flexible canopy. The size of the coherent structures is decreased as well as the instability growth rate. To cite this article: C. Py et al., C. R. Mecanique 332 (2004). (C) 2004 Academie des sciences. Published by Elsevier SAS. All rights reserved.
Mots-clés : MECANIQUE DES FLUIDES
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Submitted on : Thursday, July 17, 2014 - 1:27:45 PM
Last modification on : Friday, October 2, 2020 - 2:34:05 PM

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Charlotte Py, Emmanuel de Langre, Bruno Moulia. The mixing layer instability of wind over a flexible crop canopy. Comptes Rendus Mécanique, Elsevier Masson, 2004, 332 (8), pp.613-618. ⟨10.1016/j.crme.2004.03.005⟩. ⟨hal-01024944⟩

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