Numerical and Experimental Study on Energy-Harvesting Piezoelectric Flags

Yifan Xia (1, 2, 3) , Sébastien Michelin (1) , Olivier Doaré (2, 3)

1 LadHyX - Laboratoire d'hydrodynamique
2 IMSIA - UMR 9219 - Institut des Sciences de la mécanique et Applications industrielles
3 UME - Unité de Mécanique

The spontaneous self-sustained flapping of a piezo-electric flag placed in a fluid flow may be used to produce electricity. This abstract presents a study of the coupled dynamics of such a fluid-solid-electric system, and analyzes the influence of resonant output circuits on the harvesting efficiency. Both numerical and experimental investigations show enhancement of harvesting efficiency induced by resonant circuit.

Domaines: Mécanique des structures [physics.class-ph]; Mécanique des fluides [physics.class-ph]; Vibrations [physics.class-ph]

Yifan Xia, Sébastien Michelin, Olivier Doaré. Numerical and Experimental Study on Energy-Harvesting Piezoelectric Flags. JNRSE, May 2015, Orsay, France. ⟨hal-01412026⟩