Improving the performance of galloping energy harvester with striped bluff body

To improve the performance and efficiency of ordinary galloping energy harvesters (GEHs), this paper proposes a GEH with striped bluff body. The fluid-structure coupling simulation body oscillator harvester was carried out using COMSOL Multiphysics. cloud diagram in flow field, tip displacement at beam, lifting dragging force, trace frequency response are analyzed. Simulation results show that has characteristics rising falling peak compared GEH, which can be locked fixed to form stable periodic response. Experimental displays better harvest performance. output root mean square voltage increased by 119.2% 2 m/s wind speed, means more dynamic shows