文章基本信息

标题：Numerical study for energy harvesting of the tandem wavy cylinders in cross flow
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作者：Lin Zou ; Yaozong Yang ; Jinli Xu 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：3
页码：1-5
DOI：10.1088/1755-1315/252/3/032203
出版社：IOP Publishing
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/D_m=6, ɑ/D_m=0.15; λ/D_m=2, ɑ/D_m=0.15, λ/D_m=2, ɑ/D_m=0.3), and performing a numerical simulation at Re=100. The results show that the wavy cylinder of λ/D_m=2, ɑ/D_m=0.15 is more susceptible to induced vibration. Compared to straight cylinders, the wavy cylinder of λ/D_m=2, ɑ/D_m=0.15 have a wider range of lock-in and a larger amplitude.