一个多元的多元的空气动力性能灵感来自鸟类的羽毛翅膀
Avinash Kumar Pandey1,2, Rajneesh Bhardwaj2, Rajat Mittal1
1Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, United States of America.
Bioinspiration & biomimetics
|November 28, 2025
概括
这项研究表明,受羽毛启发的表面可以双重提升飞行. 优化羽毛长度和相互作用是高效的微型飞行器的关键.
科学领域:
- 生物力学 生物力学
- 空气动力学 在空气动力学.
- 机器人技术 机器人技术 机器人技术
背景情况:
- 鸟翼使用复杂的羽毛相互作用来产生起重,但它们的确切作用尚未完全理解.
- 羽毛变形和羽毛间的影响在飞行时显著影响了空气动力学力.
研究的目的:
- 为了研究羽毛灵感的控制表面如何增强在飞行中升空的升力.
- 分析羽毛几何和斯特鲁哈尔数对提升力比率的影响.
- 探索微型飞行器中潜在应用的羽毛间相互作用.
主要方法:
- 一个的片的二维数值模拟,其中有三个动和动的刚性膜 (羽毛).
- 在雷诺兹数为5000,斯特鲁哈尔数 (St) 为0.08,0.12和0.2.2的情况下评估性能.
- 分析了各种配置的升力产生,功耗和羽毛间效应.
主要成果:
- 特定的羽毛长度组合最大限度地提高了每个斯特鲁哈尔数的升力-功率比.
- 达到最优的配置,可达到单个羽毛平均提升功率的两倍,并获得同等功率.
- 在较高的斯特鲁哈尔数时,羽毛间的相互作用更为明显,影响了性能.
结论:
- 灵感来自羽毛的控制表面为改善起飞行时的提升和效率提供了显著的潜力.
- 优化羽毛排列和几何结构对于最大限度地提高性能至关重要.
- 这些发现支持基于航空飞行原则开发高效的微型和无人飞行器.
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