Comptes Rendus
Vortex-induced vibration of a square cylinder in wind tunnel
Comptes Rendus. Mécanique, Volume 338 (2010) no. 1, pp. 12-17.

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 :
Accepté le :
Publié le :
DOI : 10.1016/j.crme.2009.12.001
Mots clés : Vibrations, Vortex-induced vibration, Vortex shedding, Square cylinder, Lock-in

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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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/

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