Flow energy harvesting with piezoelectric flags

International audience In this article, energy harvesting with a fluttering can-tilevered plate covered by piezoelectric patches in an axial flow is adressed. A theoretical model is presented which is then discretized and numerically integrated to perform a parametric study of the energy harvesting...

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Bibliographic Details
Published in:Volume 9A: Ocean Renewable Energy
Main Authors: Doaré, Olivier, Michelin, Sébastien, Pineirua, Miguel, Xia, Yifan
Other Authors: Unité de Mécanique (UME), École Nationale Supérieure de Techniques Avancées (ENSTA Paris), Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris), Laboratoire d'hydrodynamique (LadHyX), École polytechnique (X), Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National de la Recherche Scientifique (CNRS), Labex LASIPS, projet PIEZOFLAG, ASME, ANR-12-JS09-0017,FLUTTENER,Récupération de l'énergie d'un écoulement par le flottement de plaques piézoélectriques(2012)
Format: Conference Object
Language:English
Published: HAL CCSD 2014
Subjects:
[PHYS.MECA]Physics [physics]/Mechanics [physics]
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph]
[PHYS.MECA.STRU]Physics [physics]/Mechanics [physics]/Structural mechanics [physics.class-ph]
Arctic
Online Access:https://hal.science/hal-01135610
https://hal.science/hal-01135610/document
https://hal.science/hal-01135610/file/doare_etal_omae2014.pdf
https://doi.org/10.1115/OMAE2014-23867
Description
Summary:International audience In this article, energy harvesting with a fluttering can-tilevered plate covered by piezoelectric patches in an axial flow is adressed. A theoretical model is presented which is then discretized and numerically integrated to perform a parametric study of the energy harvesting efficiency of the system. When one, two or three piezoelectric patches cover the plate, the optimal distributions of the patches that maximize the efficiency are obtained. Experimental results are presented, which are in good agreement with the model. When a significantly high number of patches of small size are considered, a continuous model is used to study the influence of a resonant harvesting circuit. A lock-in phenomenon is evidenced, which is able to significantly increase the efficiency.

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