对生物启发的鱼牙进行试验研究,以减少拖
Marshall T Graybill1,2, Nicole W Xu1,2
1Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA.
Integrative and comparative biology
|June 27, 2024
概括
鱼皮的牙可以通过独特的条纹结构减少阻力. 最近的制造业进步使得亚毫米设计能够实现高达31%的阻力降低,这对生物启发的汽车设计有影响.
科学领域:
- 生物启发的工程是生物启发的工程.
- 流体力学 流体力学 流体力学
- 材料科学 是一种材料科学.
背景情况:
- 鱼皮肤的特点是牙,复杂的,可以在各种流量条件下减少阻力.
- 牙上的纹与乱的边界层相互作用,可能通过提升流和减少交叉流.
- 鱼物种和身体位置的各种牙形态影响流动动力学,吸引了生物学,流体力学和海洋学的兴趣.
研究的目的:
- 在过去的15年中,审查制造技术和实验性阻力测量,以牙为灵感的表面.
- 根据几何形状和流量条件,综合文学数据关于生物灵感的牙和的阻力降低特性.
- 建议未来的研究方向,以优化生物灵感减速技术.
主要方法:
- 对制造技术的审查,包括为denticle-inspired表面的增材制造.
- 对实验性测量对真实鱼皮肤,工程牙和带的阻力减轻的分析.
- 现有文献的综合,以将形几何和流量条件与阻力降低性能相关联.
主要成果:
- 目前的制造方法在很大程度上仅限于毫米尺度的牙,在低于1米/秒的速度下显示阻力降低.
- 先进的技术产生了亚毫米的牙和纳米纹理的表面,实现了高达31%的阻力降低.
- 降低拖拉力取决于颗粒的几何形状和特定的流量条件.
结论:
- 生物灵感的牙和带显示了减少阻力的巨大潜力,性能与结构几何学有关.
- 未来的研究应该探索各种各样的牙形态,疏水性,防性和声学特性.
- 优化的生物灵感设计可以导致更节能的环境监测车辆,并对比较生物学产生影响.
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