Exploring the Potential of Flow-Induced Vibration Energy Harvesting Using a Corrugated Hyperstructure Bluff Body

Yikai Yuan; Hai Wang; Chunlai Yang; Hang Sun; Ye Tang; Zihao Zhang

doi:10.3390/mi14061125

Exploring the Potential of Flow-Induced Vibration Energy Harvesting Using a Corrugated Hyperstructure Bluff Body

Micromachines (Basel). 2023 May 26;14(6):1125. doi: 10.3390/mi14061125.

Authors

Yikai Yuan^{1

2

3}, Hai Wang^{1

2

3}, Chunlai Yang^{1

2

3}, Hang Sun^{1

2

3}, Ye Tang^{1

2

3}, Zihao Zhang^{1

2

3}

Affiliations

¹ School of Mechanical Engineering, Anhui Polytechnic University, Wuhu 241000, China.
² Anhui Key Laboratory of Advanced Numerical Control & Servo Technology, Wuhu 241000, China.
³ Anhui Polytechnic University Industrial Innovation Technology Research Co., Ltd., Wuhu 241000, China.

Abstract

Fluid-induced vibration is a common phenomenon in fluid-structure interaction. A flow-induced vibrational energy harvester based on a corrugated hyperstructure bluff body which can improve energy collection efficiency under low wind speeds is proposed in this paper. CFD simulation of the proposed energy harvester was carried out with COMSOL Multiphysics. The flow field around the harvester and the output voltage in different flow velocities is discussed and validated with experiments. Simulation results show that the proposed harvester has an improved harvesting efficiency and higher output voltage. Experimental results show that the output voltage amplitude of the harvester increased by 189% under 2 m/s wind speed.

Keywords: bluff body; energy harvesting; flow-induced vibration; hyperstructure.

Grants and funding

This research was funded by “The overseas study visit and training program for out-standing young backbone talents of Anhui Province, grant number gxgwfx2021035”, “The innovation team of Anhui Polytechnic University”, “Graduate Student Innovation Project of Anhui Province, grant number 2022xscx097”, “Anhui Polytechnic University-Jiujiang District Industrial Collaborative Innovation Special Fund Project, grant number 2022cyxtb4”; and “Enterprise cooperation project of Anhui Future Technology Research Institute, grant number 2023qyhz17”.