入射角对三圆柱振子涡激振动涡动力及水动能俘获影响研究

任霞; 罗竹梅; 于凤荣; 梁韩; 李野

doi:10.19912/j.0254-0096.tynxb.2024-1675

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (1) : 738-746. DOI: 10.19912/j.0254-0096.tynxb.2024-1675

入射角对三圆柱振子涡激振动涡动力及水动能俘获影响研究

任霞, 罗竹梅, 于凤荣, 梁韩, 李野

作者信息 +

EFFECT OF INCIDENCE ANGLE ON VORTEX DYNAMICS AND HYDRODYNAMIC ENERGY CAPTURE OF VORTEXINDUCED VIBRATION OF THREECYLINDER OSCILLATOR

Ren Xia, Luo Zhumei, Yu Fengrong, Liang Han, Li Ye

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摘要

以正三角形排列刚性耦合三圆柱柱群能量收集装置为研究对象,通过双向流固耦合数值方法研究不同水流入射角α=0°、45°、90°、135°、180°对柱群能量收集装置的水动力响应及低速水动能俘获的影响规律。结果表明,入射角会显著影响柱群的动态响应和锁定宽度。α=0°、135°两种入射角下不会出现下分支;α=0°时规定范围最宽,α=45°、180°时最窄。初始分支中每组柱群的尾涡都呈“2S”模式,而上分支和下分支中尾涡模式随α的变化呈现出“P+S”、“T”、“2P”等不同模式。当入射角平行或垂直于水平方向时,柱群俘能装置成为高俘能型。α=0°是该研究中最适合能量收集的角度,其次是α=180°和α=90°。结合能量转换效率,α=0°、U_r=9是能量收集的最佳选择。

Abstract

This study takes the three-cylinder oscillator with rigid connection as an energy harvester, which is arranged in an equilateral triangle. The influence of different water flow incident angles α=0°, 45°, 90°, 135° and 180° on the hydrodynamic response and low-velocity hydrokinetic energy capture of the energy harvester is studied by two-way fluid-structure interaction （FSI） numerical method. The results show that the incidence angle significantly affects the dynamic response and lock-in range of the three-cylinder oscillators. There is no lower branch in amplitude response at α0° and α135°, while the lock-in range is widest at α0° and narrowest at α=45° and α180°. The vortex of the three-cylinder oscillator at each incidence angle in the initial branch shows “2S” patterns, and show different vortex-shedding patterns such as “P+S”, “T”, “2P” and others in the upper and lower branches. When the incident angles are parallel （i.e., α0° and α180°） or perpendicular to the incoming flow direction （α90°）, the three-cylinder oscillators have higher energy capture performance. The incidence angle α0° is the most suitable angle for energy harvesting. It is followed by α180°and α90°. Considering the energy conversion efficiency, α0° at U_r=9 is the best chice.

导出引用

任霞, 罗竹梅, 于凤荣, 梁韩, 李野. 入射角对三圆柱振子涡激振动涡动力及水动能俘获影响研究[J]. 太阳能学报. 2026, 47(1): 738-746 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1675

Ren Xia, Luo Zhumei, Yu Fengrong, Liang Han, Li Ye. EFFECT OF INCIDENCE ANGLE ON VORTEX DYNAMICS AND HYDRODYNAMIC ENERGY CAPTURE OF VORTEXINDUCED VIBRATION OF THREECYLINDER OSCILLATOR[J]. Acta Energiae Solaris Sinica. 2026, 47(1): 738-746 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1675

中图分类号： TK79 TK730.2

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