On the scaling of drag reduction by reconfiguration in plants

Emmanuel de Langre; Alvaro Gutierrez; Julia Cossé

doi:10.1016/j.crme.2011.11.005

Journal articles

On the scaling of drag reduction by reconfiguration in plants

Emmanuel de Langre ¹ Alvaro Gutierrez ^{1, 2} Julia Cossé ^{1, 3}

1 LadHyX - Laboratoire d'hydrodynamique

2 UPM - Universidad Politécnica de Madrid

3 CALTECH - California Institute of Technology

Abstract : Slender flexible structures such as plants are deformed by external flow. When the deformation is significant, this results in a reduction of drag. We give a theoretical value of the exponent that characterizes the drag law. This theoretical value is shown to compare well with experimental data on a very large variety of plants. It is found that reconfiguration affects more the local bending stress than the total drag. Moreover, a non-linearity in the bending law does not affect significantly the mechanism. © 2011 Académie des sciences.

Document type :

Journal articles

Complete list of metadata

https://hal-polytechnique.archives-ouvertes.fr/hal-00994485
Contributor : Denis Roura Connect in order to contact the contributor
Submitted on : Monday, May 26, 2014 - 11:22:36 AM
Last modification on : Friday, November 26, 2021 - 6:06:16 PM

On the scaling of drag reduction by reconfiguration in plants

Identifiers

Collections

Citation

Export

Metrics

On the scaling of drag reduction by reconfiguration in plants

Identifiers

Collections

Citation

Export

Share

Metrics