Vortex-induced vibration of a square cylinder in wind tunnel

Xavier Amandolèse; Pascal Hémon

doi:10.1016/j.crme.2009.12.001

Vortex-induced vibration of a square cylinder in wind tunnel

Xavier Amandolèse ^1,² ; Pascal Hémon ³

¹ Département de mécanique – École polytechnique, 91128 Palaiseau cedex, France
² Chaire d'aérodynamique – CNAM, 78210 Saint-Cyr l'École, France
³ LadHyX, CNRS – École polytechnique, 91128 Palaiseau cedex, France

Comptes Rendus. Mécanique, Volume 338 (2010) no. 1, pp. 12-17.

Résumé

An experimental study of the vortex-induced-vibration of a flexibly mounted rigid square cylinder in a uniform airflow is presented. For this high mass ratio configuration, transverse oscillations are measured in detail for reduced velocities ranging from 5 to 20. In the lock-in region and starting from rest, the cylinder motion exhibits a transient regime followed by a limit cycle oscillation regime. New experimental data are provided in term of amplitudes and frequencies of the limit cycle oscillations. The transient behaviour is also characterized by measuring the growth rate of the oscillations amplitude.

Reçu le : 2009-07-22
Accepté le : 2009-11-29
Publié le : 2010-01-01

DOI : 10.1016/j.crme.2009.12.001

Mots clés : Vibrations, Vortex-induced vibration, Vortex shedding, Square cylinder, Lock-in

Affiliations des auteurs :

Xavier Amandolèse ^{1, 2} ; Pascal Hémon ³

¹ Département de mécanique – École polytechnique, 91128 Palaiseau cedex, France
² Chaire d'aérodynamique – CNAM, 78210 Saint-Cyr l'École, France
³ LadHyX, CNRS – École polytechnique, 91128 Palaiseau cedex, France

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     title = {Vortex-induced vibration of a square cylinder in wind tunnel},
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     doi = {10.1016/j.crme.2009.12.001},
     language = {en},
}

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Xavier Amandolèse; Pascal Hémon. Vortex-induced vibration of a square cylinder in wind tunnel. Comptes Rendus. Mécanique, Volume 338 (2010) no. 1, pp. 12-17. doi : 10.1016/j.crme.2009.12.001. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2009.12.001/

Bibliographie
Cité par

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