Leaf flutter by torsional galloping: Experiments and model

Abstract : When wind blows on trees, leaves flutter. The induced motion is known to affect biological functions at the tree scale such as photosynthesis. This paper presents an experimental and theoretical study of the aeroelastic instability leading to leaf flutter. Experiments in a wind tunnel are conducted on ficus leaves (Ficus Benjamina) and artificial leaves. We show that stability and flutter domains are separated by a well-defined limit depending on leaf orientation and wind speed. This limit is also theoretically predicted through a stability analysis of the leaf motion. (C) 2015 Elsevier Ltd. All rights reserved.
Type de document :
Article dans une revue
Journal of Fluids and Structures, Elsevier, 2015, 56, pp.1-10. 〈10.1016/j.jfluidstructs.2015.04.001〉
Liste complète des métadonnées

https://hal-polytechnique.archives-ouvertes.fr/hal-01187713
Contributeur : Denis Roura <>
Soumis le : jeudi 27 août 2015 - 14:04:22
Dernière modification le : jeudi 10 mai 2018 - 02:02:42

Identifiants

Citation

Loïc Tadrist, Kévin Julio, Marc Saudreau, Emmanuel De Langre. Leaf flutter by torsional galloping: Experiments and model. Journal of Fluids and Structures, Elsevier, 2015, 56, pp.1-10. 〈10.1016/j.jfluidstructs.2015.04.001〉. 〈hal-01187713〉

Partager

Métriques

Consultations de la notice

248