Performance enhancement of piezoelectric energy harvesters from wake galloping

A. Abdelkefi, J. M. Scanlon, E. McDowell, M. R. Hajj

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141 Scopus citations

Abstract

Experiments are performed to investigate the effects of wake galloping on the range of flow speeds over which a galloping-based piezoaeroelastic energy harvester can be effectively used. Two different upstream cylinders and a wide range of spacing between the upstream and downstream cylinders are considered. Bifurcation diagrams and type of instability for different setups are determined. The results show a complex relation between the upstream circular cylinder size, the spacing between the two cylinders, the flow speed, and the load resistance on one hand, and the level of harvested power on the other hand.

Original languageEnglish
Article number033903
JournalApplied Physics Letters
Volume103
Issue number3
DOIs
StatePublished - 15 Jul 2013

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