Numerical study for energy harvesting of the tandem wavy cylinders in cross flow

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Zou, Lin^1 ; Yang, Yaozong^1 ; Xu, Jinli^1 ; Wang, Miao^2

School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan, China^1

Continental Automotive Electronics Co., Ltd., Wuhu, China^2

关键词: Cross flows;    Cylindrical surface;    Electric energies;    Induced vibrations;    Lock-in;    Vortex induced vibration;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/3/032203/pdf
DOI  :  10.1088/1755-1315/252/3/032203

来源: IOP

【 摘 要 】

In order to make the bladeless wind turbine better convert wind energy into electric energy, this paper based on the method of passively controlling vortex-induced vibration, by changing the shape of the cylindrical surface, selecting three different parameters of the wavy cylinder (λ/Dm=6, /Dm=0.15; λ/Dm=2, /Dm=0.15, λ/Dm=2, /Dm=0.3), and performing a numerical simulation at Re=100. The results show that the wavy cylinder of λ/Dm=2, /Dm=0.15 is more susceptible to induced vibration. Compared to straight cylinders, the wavy cylinder of λ/Dm=2, /Dm=0.15 have a wider range of lock-in and a larger amplitude.