Sébastien Michelin

The issue of global climate change and the grow-ing energy demand induce a need for innovative energy harvesting devices. The possibility to harvest energy us-ing VIV of a long tensioned cable or of an elastically-mounted rigid cylinder is investigated throughout this pa-per. A simple wake-oscillator model is used to represent the major characteristics of the complex dynamics of such structures. The optimal efficiency of the two devices are similar and are reached when the solid and its fluctuating wake are in lock-in condition. The sensitivity of the op-tima of such energy harvesters with flow velocity is also discussed