| 三维仿生悬停扑翼的时间非对称扑动气动特性 |
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| 引用本文： | 朱建阳,蒋林,雷斌.三维仿生悬停扑翼的时间非对称扑动气动特性[J].航空动力学报,2017,32(4):858-864. |
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| 作者姓名： | 朱建阳 蒋林 雷斌 |
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| 作者单位： | 武汉科技大学 机械自动化学院 冶金装备及其控制教育部重点实验室，武汉 430081 |
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| 基金项目： | 国家自然科学基金（51505347） |
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| 摘 要： | 基于对现有黄蜂飞行观察实验的分析，建立了不同下扑和上挥时间非对称扑动悬停扑翼运动轨迹模型，并采用数值求解三维层流Navier-Stokes(N-S)方程的方法，研究了采用不同下扑和上挥时间比的仿生悬停扑翼气动特性.结果表明采用适当的时间非对称扑动可以增强悬停扑翼的气动性能.进一步通过对不同时间非对称扑动扑翼流场分析得出，采用时间非对称扑动不但可以增强使扑翼产生高升力的旋转环流机制，而且还可以增强扑翼表面涡流和展向流的强度,从而使扑翼具有更好的气动性能.
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| 关 键 词： | 扑翼 时间非对称扑动 Navier-Stokes方程 旋转环流 展向流 |
| 收稿时间： | 2015/9/12 0:00:00 |
Aerodynamic performance of time asymmetric flapping of a three-dimensional flapping hovering bionic wing |
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| ZHU Jian-yang,JIANG Lin,LEI Bin.Aerodynamic performance of time asymmetric flapping of a three-dimensional flapping hovering bionic wing[J].Journal of Aerospace Power,2017,32(4):858-864. |
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| Authors: | ZHU Jian-yang JIANG Lin LEI Bin |
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| Abstract: | Based on the analysis of the bumblebees flight, the kinematic model of time asymmetric flapping hovering wing was established, and the effect of different time asymmetric flapping on the aerodynamic performance of the wing was numerically studied by solving three-dimensional laminar Navier-Stokes (N-S) equation. The results show that the wing with appropriate time asymmetric flapping possesses enhancement aerodynamic performance. Through the analysis of flow field of different time asymmetric flapping wings, it was also found that the enhancement rotational circulation, stronger leading edge vortex and spanwise flow were observed for the wing with appropriate time asymmetric flapping, hence leading to enhancement aerodynamic performance. |
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| Keywords: | flapping wing time asymmetric flapping Navier-Stokes equation rotational circulation spanwise flow |
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