[Sur le mouvement d'un petit corps solide immergé dans un fluide parfait incompressible en deux dimensions]
In this paper we prove that the motion of a solid body in a two dimensional incompressible perfect fluid converges, when the body shrinks to a point with fixed mass and circulation, to a variant of the vortex-wave system where the vortex, placed in the point occupied by the shrunk body, is accelerated by a lift force similar to the Kutta-Joukowski force of the irrotational theory.
Dans cet article nous prouvons que le mouvement d'un petit corps solide immergé dans un fluide parfait incompressible en deux dimensions converge, quand le corps se rétrécit en un point, avec sa masse et sa circulation fixées, vers une variante du système « Euler+point vortex » où le vortex, placé au point où le solide a rétréci, est accéléré par un terme de force de portance similaire à la force de Kutta-Joukowski de la théorie irrotationnelle.
DOI : 10.24033/bsmf.2672
Keywords: Fluid-solid interactions, incompressible perfect fluid, vortex-wave system, Kutta-Joukowski force.
Mots-clés : Interactions fluide-solide, fluide parfait incompressible, système « Euler+point vortex », force de Kutta-Joukowski.
@article{BSMF_2014__142_3_489_0,
author = {Glass, Olivier and Lacave, Christophe and Sueur, Franck},
title = {On the motion of a small body immersed in a two-dimensional incompressible perfect fluid},
journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
pages = {489--536},
year = {2014},
publisher = {Soci\'et\'e math\'ematique de France},
volume = {142},
number = {3},
doi = {10.24033/bsmf.2672},
mrnumber = {3295721},
zbl = {1329.76048},
language = {en},
url = {https://www.numdam.org/articles/10.24033/bsmf.2672/}
}
TY - JOUR AU - Glass, Olivier AU - Lacave, Christophe AU - Sueur, Franck TI - On the motion of a small body immersed in a two-dimensional incompressible perfect fluid JO - Bulletin de la Société Mathématique de France PY - 2014 SP - 489 EP - 536 VL - 142 IS - 3 PB - Société mathématique de France UR - https://www.numdam.org/articles/10.24033/bsmf.2672/ DO - 10.24033/bsmf.2672 LA - en ID - BSMF_2014__142_3_489_0 ER -
%0 Journal Article %A Glass, Olivier %A Lacave, Christophe %A Sueur, Franck %T On the motion of a small body immersed in a two-dimensional incompressible perfect fluid %J Bulletin de la Société Mathématique de France %D 2014 %P 489-536 %V 142 %N 3 %I Société mathématique de France %U https://www.numdam.org/articles/10.24033/bsmf.2672/ %R 10.24033/bsmf.2672 %G en %F BSMF_2014__142_3_489_0
Glass, Olivier; Lacave, Christophe; Sueur, Franck. On the motion of a small body immersed in a two-dimensional incompressible perfect fluid. Bulletin de la Société Mathématique de France, Tome 142 (2014) no. 3, pp. 489-536. doi: 10.24033/bsmf.2672
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