Effects of dual-energy harvesting column arrangement on energy harvesting efficiency of bladeless wind turbine

被引：0

作者：

Liu, Qiliang ^{[1
]}

Gong, Shuguang ^{[1
]}

Xie, Guilan ^{[1
]}

Tang, Fang ^{[1
]}

Liang, Zhiwei ^{[1
]}

机构：

[1] College of Mechanieal Engineering and Mechanics, Xiangtan University, Xiangtan

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2025年 / 44卷 / 07期

关键词：

arrangement; bladeless wind turbine; energy harvesting column (EHC); energy harvesting efficiency; vortex-induced Vibration;

D O I：

10.13465/j.cnki.jvs.2025.07.005

中图分类号：

学科分类号：

摘要：

Bladeless wind turbine captures wind energy based on wind-induced vortex Vibration, and has advantage of high space utilization rate. Here, to improve energy harvesting efficiency of bladeless wind turbine, based on studying energy harvesting efficiency of a single energy harvesting column (EHC), effects of dual-EHC arrangement with stagger angles ranging of 0 ~ 90° and spacing ratios of 1. 5 ~ 7. 0 under working wind speeds on wind turbine' s energy harvesting efficiency, vortex induced Vibration response and wake vortex structure were explored. The results showed that when staggered angle is 0° and 15°, energy capture efficiency of downstream EHC is lower than that of a single EHC, while energy capture efficiency of upstream EHC gradually increases with increase in spacing ratio, when spacing ratio is 3. 5, it is approximately equal to that of a single EHC; by comparing average efficiencies of dual-EHC and single EHC, arrangement ränge is divided into 3 regions of enhancing zone, suppressing zone and weak affecting zone; specifically, when spacing ratio is 2 and staggered angle is 90°, the average energy harvesting efficiency of dual-EHC reaches more than twice that of a single EHC. © 2025 Chinese Vibration Engineering Society. All rights reserved.

引用

页码：37 / 44and75

页数：4438

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