VIV on Risers with Top-tensioning Buoyancy-cans. Part 2: Experimental Modelling

Abstract : A large scale (1/60) experiment has been conducted in order to study fluid - structure interactions within an array of risers tensioned by mean of buoyancy-cans. Similitude rules have been derived assuming a pendulum like motion of the rigid Air Cans Assembly at the top of the riser, leading to define different models associated to each structural mode of the full-scale configuration. Vortex Induced Vibrations (V.I.V.) and Wake Interactions within the array have been measured. Experimental results concerning lock-in region, in term of reduced velocity and maximum vibration amplitudes are presented together with time domain series.
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Submitted on : Sunday, July 20, 2014 - 7:28:24 PM
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Jean-Pierre Morel, M. Repecaud, G. Damy, E. Fontaine, Y. Stassen, et al.. VIV on Risers with Top-tensioning Buoyancy-cans. Part 2: Experimental Modelling. Thirteenth International Offshore and Polar Engineering Conference, May 2003, Honolulu, United States. pp.1960-1967. ⟨hal-01026051⟩

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