The mixing layer instability of wind over a flexible crop canopy

Charlotte Py; Emmanuel De Langre; Bruno Moulia

doi:10.1016/j.crme.2004.03.005

The mixing layer instability of wind over a flexible crop canopy

Charlotte Py
, Emmanuel De Langre
, Bruno Moulia

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	613-618
Number of pages	6
Journal	Comptes Rendus - Mecanique
Volume	332
Issue number	8
DOIs	https://doi.org/10.1016/j.crme.2004.03.005
Publication status	Published - 1 Jan 2004

Keywords

Biomécanique des plantes
Fluid mechanics
Fluid structure interactions
Instabilité de couche de mélange
Interactions fluide structure
Mixing layer instability
Mécanique des fluides
Plant biomechanics

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10.1016/j.crme.2004.03.005

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title = "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.",

keywords = "Biom{\'e}canique des plantes, Fluid mechanics, Fluid structure interactions, Instabilit{\'e} de couche de m{\'e}lange, Interactions fluide structure, Mixing layer instability, M{\'e}canique des fluides, Plant biomechanics",

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doi = "10.1016/j.crme.2004.03.005",

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AU - Py, Charlotte

AU - De Langre, Emmanuel

AU - Moulia, Bruno

PY - 2004/1/1

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N2 - 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.

AB - 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.

KW - Biomécanique des plantes

KW - Fluid mechanics

KW - Fluid structure interactions

KW - Instabilité de couche de mélange

KW - Interactions fluide structure

KW - Mixing layer instability

KW - Mécanique des fluides

KW - Plant biomechanics

UR - https://www.scopus.com/pages/publications/3242731021

U2 - 10.1016/j.crme.2004.03.005

DO - 10.1016/j.crme.2004.03.005

M3 - Article

AN - SCOPUS:3242731021

SN - 1631-0721

VL - 332

SP - 613

EP - 618

JO - Comptes Rendus - Mecanique

JF - Comptes Rendus - Mecanique

IS - 8

ER -

The mixing layer instability of wind over a flexible crop canopy

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Keywords

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