对两种适用于海豚的游泳模式的水力动力学进行比较和协作研究
Dan Xia1, Zhihan Li1, Ming Lei1
1School of Mechanical Engineering, Southeast University, Nanjing 211189, China.
Biomimetics (Basel, Switzerland)
|July 28, 2023
概括
海豚游泳涉及身体/尾 (BCF) 和中/配 (MPF) 模式. 虽然单独的BCF是最快的,但高频MPF协同增强速度和推力,证明了双模式的好处.
科学领域:
- * 流体动力学 流体动力学
- * 生物启发的机器人技术
- * 动物的运动运动.
背景情况:
- * 海豚表现出多才多艺的游泳,采用不同的机车运动策略.
- * 了解海豚游泳模式的水力动力学对于生物仿真和机器人设计至关重要.
- * 身体/尾 (BCF) 和中/双 (MPF) 推进之间的相互作用仍然是积极研究的领域.
研究的目的:
- * 为了比较海豚单体/尾 (BCF) 和中型/双 (MPF) 游泳模式的水力动力性能.
- * 调查BCF和MPF模式对游泳速度,推力和效率的协作影响.
- * 探索频率比 (β) 对双模式游泳表现的影响.
主要方法:
- * 开发一个三维虚拟海豚游泳者模型,具有不同的BCF和MPF模块.
- * 模拟各种游泳模式,使用重叠网格和并行切孔技术.
- *参数研究涉及调整BCF和MPF模块之间的相差和频率比 (β).
主要成果:
- *单个BCF模式始终比单个MPF和协作模式产生更高的游泳速度和推力.
- *MPF模式参与本身并没有提高性能;相差调整部分缓解了限制.
- * 具有高频率比率 (β) 的协作模式与单一BCF模式相比,表现出优越的游泳速度和推力,效率稳定.
结论:
- *BCF模式是海豚推进的主要驱动器,但MPF在特定条件下可以贡献.
- *优化频率比 (β) 是释放双模式游泳协作的好处的关键.
- * 该研究通过流结构分析验证了双模式协作对类似海豚的游泳表现的积极影响.
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