Investigations on a vortex induced vibration based energy harvester

S. Krishna Kumar, Chandan Bose, Shaikh Faruque Ali, Sunetra Sarkar, Sayan Gupta

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

This study investigates energy harvesting from vortex induced vibrations of a flexible cantilevered flapper placed in the wake of a rigid circular cylinder. The effect of the gap between the cylinder and the flapper on the energy harvested is investigated through wind tunnel experiments and numerical simulations. As the flow speed is varied, a transition in the flapper dynamics is observed, which in turn affects the power extracted by the harvester. Numerical investigations reveal that the flapper dynamics is different depending on whether the vortices are shed ahead or behind the flapper. This study concludes that the choice of the gap influences the energy harvesting potential of such harvesters.

Original languageEnglish
Article number243903
JournalApplied Physics Letters
Issue number24
Early online date11 Dec 2017
Publication statusPublished - 14 Dec 2017


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