Research on the aerodynamic performance and bionic application of dragonfly wing corrugation.

IF 3.1 3区计算机科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Bioinspiration & Biomimetics Pub Date : 2025-04-04 DOI:10.1088/1748-3190/adc5bc

Lijun Zhang, Kaifei Wang, Xu Zhang, Shibo Liu, Zhengjun Jing, Jiahui Lu, Xudong Cui, Ziyi Liu

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引用次数: 0

Abstract

To investigate the aerodynamic performance of dragonfly wing corrugations under gliding conditions, a new method of corrugation deformation is proposed. Firstly, the coordinate transformation functions that describe the amplitude and camber deformation of the corrugation and numerical simulation model are established. Then the effects of the corrugation structural parameters on airfoil performance are investigated by orthogonal experiment. Subsequently, the optimal structural parameters are selected sequentially, and the mechanism of the corrugation producing a high lift-to-drag ratio is analyzed. The results show that the optimized corrugation parameters are: corrugation profile as profile 5, amplitude coefficientλ= 0.8, vertexx-coordinatea= 0.9c, vertexy-coordinateb= 0.04c. The optimal airfoil achieves the highest lift-to-drag ratio of 5.090, which is increased by 42.82% compared with the flat airfoil (FA). The cambered corrugation airfoil can suppress flow separation. The high-pressure area generated within pressure surface corrugation can increase the pressure difference between the upper and lower surfaces, which is the main reason for the high lift-to-drag ratio. Finally, the bionic airfoils are built by arranging the corrugation on the FFA-W3-211 airfoil, which prove that the dragonfly corrugation with a low Reynolds number is also applicable to the wind turbine airfoil with a high Reynolds number, thereby increasing the lift-to-drag ratio of the prototype airfoil by 1.22%.

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蜻蜓波纹翼气动性能及仿生应用研究。

为了研究蜻蜓机翼在滑翔条件下波纹的气动性能，提出了一种新的波纹变形方法。首先，建立了描述波纹幅值和弧度变形的坐标变换函数和数值模拟模型；然后通过正交试验研究了波纹结构参数对翼型性能的影响。在此基础上，选择了最优结构参数，分析了波纹产生高升阻比的机理。结果表明，优化后的波纹参数为：波纹轮廓为轮廓5，振幅系数λ = 0.8，顶点x坐标a = 0.9c，顶点y坐标b = 0.04c。优化后的翼型升阻比达到最高的5.090，比平面翼型提高了42.82%。压力面波纹增大了上下表面的压力差，这是造成升阻比高的主要原因。最后，通过在FFA-W3-211型翼型上布置波纹，构建了仿生翼型，证明了低雷诺数的蜻蜓波纹同样适用于高雷诺数的风力机翼型，从而使原型翼型升阻比提高了1.22%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bioinspiration & Biomimetics 工程技术-材料科学：生物材料

CiteScore

5.90

自引率

14.70%

发文量

132

审稿时长

3 months

期刊介绍： Bioinspiration & Biomimetics publishes research involving the study and distillation of principles and functions found in biological systems that have been developed through evolution, and application of this knowledge to produce novel and exciting basic technologies and new approaches to solving scientific problems. It provides a forum for interdisciplinary research which acts as a pipeline, facilitating the two-way flow of ideas and understanding between the extensive bodies of knowledge of the different disciplines. It has two principal aims: to draw on biology to enrich engineering and to draw from engineering to enrich biology. The journal aims to include input from across all intersecting areas of both fields. In biology, this would include work in all fields from physiology to ecology, with either zoological or botanical focus. In engineering, this would include both design and practical application of biomimetic or bioinspired devices and systems. Typical areas of interest include: Systems, designs and structure Communication and navigation Cooperative behaviour Self-organizing biological systems Self-healing and self-assembly Aerial locomotion and aerospace applications of biomimetics Biomorphic surface and subsurface systems Marine dynamics: swimming and underwater dynamics Applications of novel materials Biomechanics; including movement, locomotion, fluidics Cellular behaviour Sensors and senses Biomimetic or bioinformed approaches to geological exploration.