一个没有叶片的风力轮机的新建议:生物灵感设计的柱状仙人掌类型杆
Isaac Hernández-Arriaga1, Joaquín Pérez-Meneses1, Guillermo Eduardo Mejía-Hernández1
1Departamento de Metal Mecánica, Tecnológico Nacional de México, Instituto Tecnológico de Querétaro, Av. Tecnológico s/n Esq. Gral. Mariano Escobedo, Col. Centro Histórico, Querétaro 76000, Mexico.
Biomimetics (Basel, Switzerland)
|October 28, 2025
概括
生物灵感的仙人掌形状的杆通过增强旋诱导的振动 (VIV) 来显著提升风能采集. 这种无叶片风力轮机设计在最佳条件下显示出比传统设计高出12倍的VIV振幅.
科学领域:
- 可再生能源工程可再生能源工程
- 空气动力学 在空气动力学.
- 生物模拟设计的设计
背景情况:
- 无叶片风力轮机为传统设计提供了替代方案,利用引发的振动 (VIV) 来发电.
- 传统的圆柱形杆在优化VIV以提高能量捕获方面存在局限性.
- 生物灵感设计,特别是柱状仙人掌结构,为提高空气动力学性能提供了一种新的方法.
研究的目的:
- 为了研究无叶片风力轮机的柱状仙人掌类型杆的空气动力学性能.
- 为了比较生物灵感杆与传统圆柱形杆的VIV性能.
- 通过优化流生成,最大限度地提高风能转换效率.
主要方法:
- 在一个无叶片风力轮 (VIV-BWT) 的缩放原型上进行实验研究.
- 对具有不同肋数和杆杆角度的柱状木型杆的空气动力学性能分析.
- 在不同风速下,生物灵感和圆柱形杆之间的VIV振幅的比较.
主要成果:
- 以仙人掌为灵感的杆的几何配置显著影响了 vortex 形成和 VIV.
- 在6.0m/s和0°杆角度下,一个6肋状仙人掌杆实现了比圆柱形杆大12倍的VIV振幅.
- 5-肋骨和7-肋骨仙人掌杆分别显示了2.4x和2.2x更大的VIV振幅.
- 传统的圆柱形杆在风速低于5米/秒的情况下表现更好.
结论:
- 以仙人掌为灵感的杆几何结构有效地增强了带引起的振动,用于无叶片的风能采集.
- 与传统设计相比,优化的生物灵感设计显示了VIV振幅的大幅改善.
- 该研究强调了仿生技术在推进风能技术方面的潜力,其性能取决于风速和杆配置.
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