Numerical Study For Energy Harvesting Of The Tandem Wavy Cylinders In Cross Flow
2018 4TH INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND MATERIAL APPLICATION(2019)
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 (lambda/D-m=6, alpha/D-m=0.15; lambda/D-m=2, alpha/D-m=0.15, lambda/D-m=2, alpha/D-m=0.3), and performing a numerical simulation at Re=100. The results show that the wavy cylinder of lambda/D-m=2, alpha/D-m=0.15 is more susceptible to induced vibration. Compared to straight cylinders, the wavy cylinder of lambda/D-m=2, alpha/D-m=0.15 have a wider range of lock-in and a larger amplitude.
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关键词
wavy cylinders,energy harvesting,numerical study
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