2016/12/16 by Y. Xia, O. Doare, Olivier Doaré +5
Engineering · Physics and Astronomy · #Advanced Sensor and Energy Harvesting Materials #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Innovative Energy Harvesting Technologies #Lattice Boltzmann Simulation Studies #physics.flu-dyn
paper · pdf · doi:10.48550/arxiv.1612.05482
13 pages, 6 figures, to appear in Eur. J. Comp. Mech. (Special Issue on Fluid Flows with Interactive Boundaries)
arxiv created 2016/12/16 · openalex publication_date 2016/12/16 · arxiv updated 2016/12/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The fluid-solid-electric dynamics of a flexible plate covered by interconnected piezoelectric patches in an axial steady flow are investigated using numerical simulations based on a reduced-order model of the fluid loading for slender structures. Beyond a critical flow velocity, the fluid-solid instability results in large amplitude flapping of the structure. Short piezoelectric patches positioned continuously along the plate convert its local deformation into electrical currents that are used within a single internal electrical network acting as an electric generator for the external output circuit. The relative role of the internal and external impedance on the energy harvesting of the system is presented and analyzed in the light of a full modeling of the electric and mechanical energy exchanges and transport along the structure.