Volume 108, Number 4, November 2014
|Number of page(s)||5|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||18 November 2014|
Drag reduction, from bending to pruning
1 LadHyX, Département de Mécanique, École Polytechnique - 91128 Palaiseau, France
2 Department of Mechanical and Aerospace Engineering, University of California San Diego 9500 Gilman Drive, La Jolla, CA 92093-0411, USA
3 Aix Marseille Université, CNRS, IRPHE UMR 7342 - 13013 Marseille, France
Received: 11 July 2014
Accepted: 27 October 2014
Most plants and benthic organisms have evolved efficient reconfiguration mechanisms to resist flow-induced loads. These mechanisms can be divided into bending, in which plants reduce their sail area through elastic deformation, and pruning, in which the loads are decreased through partial breakage of the structure. In this letter, we show by using idealized models that these two mechanisms or, in fact, any combination of the two, yield comparable relative reduction in the drag experienced by terrestrial and aquatic vegetation.
PACS: 87.10.Pq – Elasticity theory / 89.75.Da – Systems obeying scaling laws / 89.75.Hc – Networks and genealogical trees
© EPLA, 2014
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