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.
Emmanuel de Langre 1 ; Alvaro Gutierrez 1, 2 ; Julia Cossé 1, 3
@article{CRMECA_2012__340_1-2_35_0, author = {Emmanuel de Langre and Alvaro Gutierrez and Julia Coss\'e}, title = {On the scaling of drag reduction by reconfiguration in plants}, journal = {Comptes Rendus. M\'ecanique}, pages = {35--40}, publisher = {Elsevier}, volume = {340}, number = {1-2}, year = {2012}, doi = {10.1016/j.crme.2011.11.005}, language = {en}, }
TY - JOUR AU - Emmanuel de Langre AU - Alvaro Gutierrez AU - Julia Cossé TI - On the scaling of drag reduction by reconfiguration in plants JO - Comptes Rendus. Mécanique PY - 2012 SP - 35 EP - 40 VL - 340 IS - 1-2 PB - Elsevier DO - 10.1016/j.crme.2011.11.005 LA - en ID - CRMECA_2012__340_1-2_35_0 ER -
Emmanuel de Langre; Alvaro Gutierrez; Julia Cossé. On the scaling of drag reduction by reconfiguration in plants. Comptes Rendus. Mécanique, Volume 340 (2012) no. 1-2, pp. 35-40. doi : 10.1016/j.crme.2011.11.005. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2011.11.005/
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