三维仿生悬停扑翼的时间非对称扑动气动特性

朱建阳; 蒋林; 雷斌

doi:10.13224/j.cnki.jasp.2017.04.0010

三维仿生悬停扑翼的时间非对称扑动气动特性

doi: 10.13224/j.cnki.jasp.2017.04.0010

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

基金项目: 国家自然科学基金（51505347）

计量
- 文章访问数: 1078
- HTML浏览量: 3
- PDF量: 410
- 被引次数: 0
出版历程
- 收稿日期: 2015-09-12
- 刊出日期: 2017-04-28

Aerodynamic performance of time asymmetric flapping of a three-dimensional flapping hovering bionic wing

摘要

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.
- 扑翼 /
- 时间非对称扑动 /
- Navier-Stokes方程 /
- 旋转环流 /
- 展向流
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.
- flapping wing /
- time asymmetric flapping /
- Navier-Stokes equation /
- rotational circulation /
- spanwise flow

HTML

参考文献(18)

[1]	Alexander D E.Nature’s flyers:birds,insects,and the biomechanics of flight［M］.Baltimore,US：The Johns Hopkins University Press,2002.
[2]	Ellington C P.The aerodynamics of hovering insect flight：Ⅲ kinematics［J］.Philosophical Transaction of the Royal Society of London:Series B Biological Sciences,1984,305(1122):41-78.
[3]	Dudley R,Ellington C P.Mechanics of forward flight in bumblebees：Ⅰ kinematics and morphology［J］.Journal of Experimental Biology,1990,148(1):19-52.
[4]	Alford L D, Jr.Aerodynamic analysis of natural flapping flight using a lift model based on spanwise flow［D］.Dayton，US:University of Dayton,2010.
[5]	Yu Y L,Tong B G.A flow control mechanism in wing flapping with stroke asymmetry during insect forward flight［J］.Acta Mechanica Sinica,2005,21(3):218-227.
[6]	Zhang X W,Zhou C Y.Numerical investigation on the aerodynamic characteristics of a forward flight flapping airfoil with nosymmetrical plunging motion［J］.Information Technology Journal,2011,10(4):748-758.
[7]	Sarkar S,Chajjed S,Krishnan A.Study of asymmetric hovering in flapping flight［J］.European Journal of Mechanics：B Fluids,2013,37（1）:72-89.
[8]	Lu K,Xie Y H,Zhang D,et al.Numerical investigations into the asymmetric effects on the aerodynamic response of a pitching airfoil［J］.Journal of Fluids and Structures,2013,39（5）:76-86.
[9]	Zhu J Y,Zhou C Y.Aerodynamic performance of a two-dimensional flapping wing in asymmetric stroke［J］.Journal of Aerospace Engineering,2014,288(2):1-12.
[10]	Nagai H,Isogai K,Fujimoto T,et al.Experimental and numerical study of forward flight aerodynamics of insect flapping wing［J］.AIAA Journal,2009,47(3):730-742.
[11]	Bomphrey R J,Taylor G K,Thomas A L R.Smoke visualization of free-flying bumblebees indicates independent leading-edge vortices on each wing pair［J］.Experiments in Fluids,2009,46(5):811-821.
[12]	Dickinson M H,Lehmann F O,Sane S P.Wing rotation and the aerodynamic basis of insect flight［J］.Science,1999,284(5422):1954-1960.
[13]	Shyy W,Aono H,Chimakurthi S K,et al.Recent progress in flapping wing aerodynamics and aeroelasticity［J］.Progress in Aerospace Sciences,2010,46(7):284-327.
[14]	赵红燕,张鹏飞,宁建国.扑翼模型的气动力研究［J］.北京理工大学学报,2014,34(增刊1):172-175.ZHAO Hongyan,ZHANG Pengfei,NING Jianguo.A study of aerodynamics of a flapping-wing model［J］.Transactions of Beijing Institute of Technology,2014,34(Suppl.1):172-175.(in Chinese)
[15]	Johansson L C,Engel S,Kelber A,et al.Multiple leading edge vortices of unexpected strength in freely flying hawkmoth［J］.Scientific Reports,2013,3（11）:3264.1-3264.5.
[16]	Ellington C P,Berg C V D,Willmott A P,et al.Leading edge vortices in insect flight［J］.Nature,1996,384（6610）:626-630.
[17]	Lan S L,Sun M.Aerodynamic properties of a wing performing unsteady motions at low Reynolds number［J］.Acta Mechanica,2001,149(1):135-147.
[18]	Sun M,Tang J.Unsteady aerodynamic force generation by a model fruit fly wing in flapping motion［J］.Journal of Experimental Biology,2002,205(1):55-70.