Bio-Inspired Aerodynamic Noise Control: A Bibliographic Review
Bio-Inspired Aerodynamic Noise Control: A Bibliographic Review
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DOI：
10.3390/app9112224
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发表时间：
2019-05
期刊：
影响因子：
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通讯作者：
Yong Wang;Kun Zhao;Xiangdong Lu;Yu-Bao Song;G. Bennett
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文献类型：
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作者：
Yong Wang;Kun Zhao;Xiangdong Lu;Yu-Bao Song;G. Bennett
众所周知，许多种类的猫头鹰都具有安静飞行的独特能力，这可以归因于它们独特而特殊的羽毛适应性。受猫头鹰的启发，研究人员试图通过从不同角度学习飞机和其他结构的降噪特性来降低其空气动力学噪声，然后利用所获得的知识开发出许多创新的降噪解决方案。虽然生物激励气动噪声控制已经取得了丰硕的成果，但据作者所知，相对较少的工作，总结了这方面的主要研究成果和进展。本文系统地综述了生物激励气动噪声控制的研究进展和发展趋势，包括猫头鹰翅膀羽毛的宏观和微观形态特征，野外飞行鸟类和风洞制备翅膀的噪声测量，以及生物激励气动噪声控制的可行性、参数影响、四种主要的生物启发降噪技术的空气动力学效应和潜在机制，即，前缘锯齿、后缘锯齿、边缘型后缘延伸部和多孔材料引起的噪音降低。最后，我们还对未来的工作提出了一些建议。
It is well-known that many species of owl have the unique ability to fly silently, which can be attributed to their distinctive and special feather adaptations. Inspired by the owls, researchers attempted to reduce the aerodynamic noise of aircraft and other structures by learning their noise reduction features from different viewpoints and then using the gained knowledge to develop a number of innovative noise reduction solutions. Although fruitful results have been achieved in the bio-inspired aerodynamic noise control, as far as the authors know, comparatively little work has been done to summarize the main findings and progresses in this area. In this bibliographic survey, we systematically review the progresses and trends of the bio-inspired aerodynamic noise control, including the macroscopic and microscopic morphological characteristics of the owl wing feathers, the noise measurements on both flying birds in the field and prepared wings in the wind tunnel, as well as theoretical, numerical and experimental studies that explored the feasibility, parameter influence, aerodynamic effects and underlying mechanisms of the four main bio-inspired noise reduction techniques, i.e., leading edge serrations, trailing edge serrations, fringe-type trailing edge extensions and porous material inspired noise reduction. Finally, we also give some suggestions for future work.