Amirkabir University of Technology Amirkabir Journal of Mechanical Engineering 2008-6032 56 2 2024 04 20 Effect of Various arrangements of piezoelectric beam on Energy Harvesting of Vortex Induced Vibration of Circular Cylinder Effect of Various arrangements of piezoelectric beam on Energy Harvesting of Vortex Induced Vibration of Circular Cylinder 185 212 5456 10.22060/mej.2024.22869.7687 FA Shiva Sharifi Mechanical and Aerospace Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran Ali Esmaeili Mechanical and Aerospace Engineering Department, Engineering Faculty, Ferdowsi University of Mashhad, Mashhad, Iran, 0000-0002-4463-6823 Journal Article 2023 12 17 <span style="letter-spacing: .05pt;">In this study, in order to harvest energy from the vortex-induced vibration of fluid flow, piezoelectric beams mounted behind a circular cylinder are considered, and the effect of various arrangements of the beams is 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 occurs by a resistance value of 1000 Ω and its value decreases with the increase of resistance. Furthermore, by growing 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.</span> <span style="letter-spacing: .05pt;">In this study, in order to harvest energy from the vortex-induced vibration of fluid flow, piezoelectric beams mounted behind a circular cylinder are considered, and the effect of various arrangements of the beams is 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 occurs by a resistance value of 1000 Ω and its value decreases with the increase of resistance. Furthermore, by growing 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.</span> https://mej.aut.ac.ir/article_5456_a89b71bb5227c75d463dd82a03115738.pdf