为水力动力和声学性能优化三维条纹表面的多目标
Zixiao Wei1, Zilan Zhang1, Dahyun Daniel Lim1
1Mechanical Engineering, University of California Berkeley, 1112 Etcheverry Hall, Berkeley, California, 94720, UNITED STATES.
Bioinspiration & biomimetics
|September 2, 2025
概括
这项研究引入了一种以鱼皮肤为灵感的新型3D边形表面设计. 优化的地形减少了阻力和流量噪声,提高了水下应用的效率和声学隐形性.
科学领域:
- 生物启发工程
- 流体动力学
- 听力学
背景情况:
- 鱼皮肤的牙激发了鱼减少阻力.
- 之前的研究主要集中在二维地形上,而三维地形却未被充分探索.
- 复杂的3D牙表面挑战了参数化,模拟和制造.
研究的目的:
- 介绍一个3D,带带增强的表面地形.
- 减少阻力和抑制流动引起的噪音.
- 为拖拉式阵列声纳应用提供可扩展的解决方案.
主要方法:
- 使用贝叶斯优化和计算流体动力学 (CFD).
- 开发和分析了一种新的3D带纹增强表面地形.
- 进行流场分析以了解近壁旋转动态.
主要成果:
- 最佳设计将噪声压力降低6.87dB,阻力降低0.34%.
- 实现的最大噪声降低为8.81dB,阻力略有增加.
- 最大的阻力降低为5.18%,有显著的噪音抑制.
结论:
- 通过CFD模拟和贝叶斯优化,可以有效地改进3D边形面.
- 开发的地形平衡了降噪和水力动力性能.
- 这种生物灵感设计提高了水下应用的声学隐形性和效率.
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