胸和水生生物体之间的水力动力相互作用的三维数值研究
Kotaro Morifusa1, Tomohiro Fukui2
1Department of Master's Program, Kyoto Institute of Technology Matsugasaki Goshokaido-cho, Sakyo-ku, Kyoto 606-8585, Japan.
Biomimetics (Basel, Switzerland)
|March 27, 2024
概括
鱼的胸显著影响游泳效率. 优化翅膀的相位差可以使推进效率增加三倍,即使在较低的频率,为水中机动提供了洞察力.
科学领域:
- * 生物力学 生物力学
- * 流体动力学 流体动力学
- * 水上运动机械
背景情况:
- * 鱼类的运动依赖于复杂的身体和的运动.
- * 胸对于鱼类的机动性和推进能力至关重要.
- * 了解体水力动力相互作用是提高推进效率的关键.
研究的目的:
- * 为了研究胸和鱼体之间的水力动力相互作用.
- * 分析不对称的胸飞对推进性能的影响.
- * 探索振幅比,频率比和相差的变化如何影响游泳效率.
主要方法:
- * 一个小型游泳物体的数值模拟.
- * 检查与身体轴相对不对称的胸飞.
- * 身体和胸幅度比率,频率比率和相差的系统变化.
主要成果:
- * 增加频率比率通常会提高推进性能.
- * 较高的振幅比率对推进性能产生了负面影响.
- *变化的相差显著提高了推进性能,特别是在低频率.
结论:
- *胸相位差异是最大限度地提高鱼类游泳效率的关键因素.
- *最佳相位差可以比零相位差提高3.7倍的推进效率.
- * 这项研究为设计高效的生物灵感水族车辆提供了宝贵的见解.
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