Effect of Various arrangements of piezoelectric beam on Energy Harvesting of Vortex Induced Vibration of Circular Cylinder

Document Type : Research Article

Authors

1 Mechanical and Aerospace Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

2 Mechanical and Aerospace Engineering Department, Engineering Faculty, Ferdowsi University of Mashhad, Mashhad, Iran,

10.22060/mej.2024.22869.7687

Abstract

In this study, in order to harvest energy from vortex-induced vibration of fluid flow, piezoelectric beams mounted behind a circular cylinder are considered and effect of various arrangements of the beams are studied. To reach this goal, a three-way coupling model in the turbulent, unsteady and viscous flow regime is numerically investigated. The simulations are investigated for different values of electrical resistance and its effect on vibration amplitude, frequency ratio, voltage and power output are compared. It has been shown that the maximum oscillation amplitude and frequency ratio is occurred by a resistance value of 1000 Ω and its value decreases with the increase of resistance. Furthermore, by growing of the load resistance, the generated voltage goes up significantly and the maximum voltage is obtained in the load resistance as 100 MΩ, Contrastingly, maximum power is obtained at low values of the load resistance. Finally, it is found that in the parallel arrangement of beams, due to less damping ratio due to stronger interaction between beams and shear layers, larger vibration amplitude and much more electrical output occurs.

Keywords

Main Subjects

Amirkabir Journal of Mechanical Engineering

Articles in Press, Accepted Manuscript
Available Online from 29 June 2024

Files

Share

How to cite

Statistics