Wake effects characterization using wake oscillator model. Comparison on 2D response with experiments

Benoît Gaurier (1) , Grégory Germain (1) , David Cébron (2)

1 ERT - Unité Essais et Recherches Technologiques
2 IRPHE - Institut de Recherche sur les Phénomènes Hors Equilibre

A model using wake oscillators is developed to predict the 2D motion in a transverse plan of two rigid cylinders in tandem arrangement. This model of the wake dynamics is validated with experimental data from previous trials which took place at the Ifremer flume tank in Boulogne-sur-Mer, France. The agreement between the model and the experimental results allows using this model as a simple computational tool in the prediction of 2D Vortex-Induced Vibrations (VIV) and, after some futher developments, Wake-Induced Oscillations (WIO) effects.

Mots clés: wake; VIV; WIO; Van Der Pol oscillators; phenomenological model; risers

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

Benoît Gaurier, Grégory Germain, David Cébron. Wake effects characterization using wake oscillator model. Comparison on 2D response with experiments. 8th International Conference on HydroDynamics, Sep 2008, Nantes, France. ⟨hal-00457771⟩