Chaotic vortex induced vibrations

Jisheng Zhao (1) , Justin S. Leontini (2) , David Lo Jacono (3) , John Sheridan (1)

1 Fluids Laboratory for Aeronautical and Industrial Research - FLAIR (Victoria, Australia)
2 Swinburne University of Technology [Melbourne]
3 IMFT - Institut de mécanique des fluides de Toulouse

This study investigates the nature of the dynamic response of an elastically mounted cylinder immersed in a free stream. A novel method is utilized, where the motion of the body during a free vibration experiment is accurately recorded, and then a second experiment is conducted where the cylinder is externally forced to follow this recorded trajectory. Generally, the flow response during both experiments is identical. However, particular regimes exist where the flow response is significantly different. This is taken as evidence of chaos in these regimes.

Mots clés: Fluid structure interaction; VIV

Domaines: Mécanique des fluides [physics.class-ph]

Jisheng Zhao, Justin S. Leontini, David Lo Jacono, John Sheridan. Chaotic vortex induced vibrations. Physics of Fluids, 2014, vol. 26 (n° 2), pp. 1-7. ⟨10.1063/1.4904975⟩. ⟨hal-01118404⟩