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

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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

更新时间：2026-02-06

- 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
- Vol. 47, Issue 1, Pages: 738-746(2026)
- 作者机构：
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-1675
  CLC： TK79
- Online First：05 February 2026，
  
  Published：05 February 2026
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任霞, 罗竹梅, 于凤荣, et al. 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]. 2026, 47(1): 738-746.
DOI：

任霞, 罗竹梅, 于凤荣, et al. 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]. 2026, 47(1): 738-746. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1675.

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°、Ur=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 =9 is the best chice.

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