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激光消光生物模拟周期阵列鱼尺寸表面用于降低拖动.

Dengke Chen1, Bowen Zhang1, Haifeng Zhang1

  • 1College of Transportation, Ludong University, Yantai 264025, China.

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概括

这项研究生物模拟鱼,以创建一个表面,减少10.26%的阻力. 工程表面产生流向,将滑动摩擦转化为滚动摩擦,以提高流体动力学.

关键词:
降低阻力减轻阻力减轻阻力鱼的尺度是鱼的尺度.激光切除是指使用激光切除.模拟模拟是指一个模拟模拟.螺旋的螺旋是什么意思

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科学领域:

  • 工程 工程师 工程师 工程师
  • 生物模拟学是一种生物模拟学.
  • 流体动力学 流体动力学

背景情况:

  • 降低表面摩擦是一个重要的工程挑战.
  • 自然生物系统,特别是鱼皮,为功能表面提供了灵感.
  • 鱼具有独特的结构和特性,可以增强流体动力学.

研究的目的:

  • 通过激光切除来制造一个仿生鱼表面.
  • 为了描述制造表面的形态.
  • 评估阻力降低性能和分析底层机制.

主要方法:

  • 在模板上制造一个周期性数组的鱼,通过激光切除.
  • 使用扫描电子显微镜和白光干扰特征测量来表征表面形态.
  • 在循环水道中测量和使用计算流体动力学的分析.

主要成果:

  • 一个生物模拟鱼表面成功制造.
  • 在雷诺兹数为39,532.52时,最大阻力减小10.26%.
  • 随着尺度间距离的增加,阻力减小;沿流被确定为机制.

结论:

  • 生物模拟鱼有效减少表面摩擦.
  • 生成的沿流旋是阻力降低机制的关键.
  • 这项研究为进一步的水力动力学研究提供了基础,并激发了新的阻力减小和防技术.