Experimental study on drag-reduction mechanisms based on the physical characteristic of tip vortex

Huang Wentao; Xiang Yang; Wang Xiao; Liu Hong; Gu Dingyi

doi:10.11729/syltlx20160194

Volume 31 Issue 5

Turn off MathJax

Article Contents

Abstract

References

Journal of Experiments in Fluid Mechanics > 2017 > 31(5): 53-59. > DOI: 10.11729/syltlx20160194

Huang Wentao, Xiang Yang, Wang Xiao, Liu Hong, Gu Dingyi. Experimental study on drag-reduction mechanisms based on the physical characteristic of tip vortex[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(5): 53-59. DOI: 10.11729/syltlx20160194

Citation:

PDF (8209 KB)

Experimental study on drag-reduction mechanisms based on the physical characteristic of tip vortex

School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China

More Information

Received Date: December 10, 2016
Revised Date: August 22, 2017

Graphical Abstract

Abstract

Abstract

The drag-reduction mechanisms based on the physical characteristic of the tip vortex are investigated through experiments in the wind tunnel. Through 3DPIV (3D Particle Image Velocimetry) experiments, the physical characteristic of tip vortex is obtained, and the induced drag of wing is calculated based on the aerodynamic force measurement setup of wingtip proposed in this paper. Experimental results show that the non-dimensional circulation of the tip vortex increases with the increasing angle of attack and the wind speed. Meanwhile, with the decrease of the non-dimension circulation of the tip vortex or the increase of the spacing between the wing and the tip vortex, the induced drag becomes smaller and smaller. Specifically, the induced drag reduction can be achieved by inhibiting the non-dimensional intensity of the tip vortex, which weakens the interaction between the main wing and the tip vortex.
- tip vortex,
- physical characteristic,
- induced drag,
- circulation,
- drag reduction

FullText(HTML)

References (25)

References

[1]	马汉东, 崔尔杰.大型飞机阻力预示与减阻研究[J].力学与实践, 2007, 29(2):1-8. http://www.cnki.com.cn/Article/CJFDTOTAL-LXYS200702001.htm Ma H D, Cui E J. Drag prediction and reduction for civil transportation aircraft[J]. Mechanics in Engineering, 2007, 29(2):1-8. http://www.cnki.com.cn/Article/CJFDTOTAL-LXYS200702001.htm
[2]	Birch D, Lee T. Structure and induced drag of a tip vortex[J]. Journal of Aircraft, 2004, 41(5):1138-1145. DOI: 10.2514/1.2707
[3]	Devenport W J, Rife M C, Liapis S I, et al. The structure and development of a wing-tip vortex[J]. Journal of Fluid Mechanics, 1996, 312:67-106. DOI: 10.1017/S0022112096001929
[4]	江永泉.翼梢小翼的空气动力机理[J].民用飞机设计与研究, 1993, (3):16-22. http://www.cqvip.com/qk/91315X/199303/1123823.html
[5]	顾蕴松, 程克明, 郑新军.翼尖涡流场特性及其控制[J].空气动力学学报, 2008, 26(4):446-451. http://www.cnki.com.cn/Article/CJFDTOTAL-KQDX200804006.htm Gu Y S, Cheng K M, Zheng X J. Flow field characteristics of wing tips vortex and its control[J]. Acta Aerodynamica Sinica, 2008, 26(4):446-451. http://www.cnki.com.cn/Article/CJFDTOTAL-KQDX200804006.htm
[6]	Gatto A, Mattioni F, Friswell M I. Experimental investigation of bistable winglets to enhance wing lift takeoff capability[J]. Journal of Aircraft, 2009, 46(2):647-655. DOI: 10.2514/1.39614
[7]	Sun R M, Daichin. Experimental investigation on tip vortices and aerodynamics[J]. Theoretical and Applied Mechanics Letters, 2011, 1(3):1-6. http://www.sciencedirect.com/science/article/pii/S2095034915300489
[8]	Ashurst W T, Meiburg E. Three-dimensional shear layers via vortex dynamics[J]. J Fluid Mech, 1988, 189:87-116. DOI: 10.1017/S0022112088000928
[9]	Knio O M, Ghoniem A F. Numerical study of a 3-dimensional vortex method[J]. Journal of Computational Physics, 1990, 86(1):75-106. DOI: 10.1016/0021-9991(90)90092-F
[10]	Cai J. LES for wing tip vortex around an airfoil[D]. Texas:University of Texas, 2006:74-75.
[11]	Lee C S. Flow structure and scaling laws in lateral wing-tip blowing[J]. AIAA J, 1989, 27:1002-1007. DOI: 10.2514/3.10211
[12]	Lee C S, Tavella D. Flow structure of lateral wing-tip blowing[R]. AIAA-1986-1810, 1986.
[13]	Margaris P, Gursul I. Effect of steady blowing on wing tip flowfield[R]. AIAA-2004-2619, 2004.
[14]	Catalano F M, Ceron-Mufioz H D. Experimental analysis of the aerodynamic characteristics of adaptive multi-winglets[C]. 43rd AIAA Aerospace Sciences Meeting and Exhibit, Reno:AIAA, 2005.
[15]	Falclio L, Gomes A A, Suleman A. Aero-structural design optimization of a morphing wingtip[J]. Journal of Intelligent Material Systems and Structures, 2011, 22(10):1113-1124. DOI: 10.1177/1045389X11417652
[16]	Boiler C, Kuo C M. Demonstration of adaptive structure performance on modular micro airvehicle[C]. 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Orlando:AIAA, 2010.
[17]	Kroo I. Drag due to lift concepts for prediction and reduction[J]. Annual Review of Fluid Mechanics, 2001, 33:587-617. DOI: 10.1146/annurev.fluid.33.1.587
[18]	Chao D D, Dam C P. Wing drag prediction and de-composition[R]. AIAA-2004-5074, 2004.
[19]	Ringuette M J, Milano M, Gharib M. Role of the tip vortex in the force generation of low-aspect-ratio normal flat plates[J]. Journal of Fluid Mechanics, 2007, 581:453-468. DOI: 10.1017/S0022112007005976
[20]	Dacles-Mariani J, Kwak D, Zilliac G G. On numerical errors and turbulence modeling in tip vortex flow prediction[J]. International Journal for Numerical Methods in Fluids, 1999, 30:65-82. DOI: 10.1002/(ISSN)1097-0363
[21]	Takahashi R K, Mcalister P K W. Study of a wing-tip vortex using laser velocimetry[R]. NASA-Technical Memorandum-88343, Washington, D. C.:NASA, 1987.
[22]	Li J, Cai J, Liu C. Large eddy simulation of wing tip vortex in the near field[R]. Mathematics Preprint Series. The University of Texas at Arlington, 2007.
[23]	Bailey S C C, Tavoularis S. Measurements of the velocity field of a wing-tip vortex, wandering in grid turbulence[J]. J Fluid Mech, 2008, 601:281-315. https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/measurements-of-the-velocity-field-of-a-wing-tip-vortex-wandering-in-grid-turbulence/1CDB8F761B0DBBE814A822BE1098B949
[24]	Prasad A K, Jensen K. Scheimpflug stereo camera for particle image velocimetry in liquid flows[J]. Appl Opt, 1995, 34:7092. DOI: 10.1364/AO.34.007092
[25]	Jardin T, Farcy A, David L. Three-dimensional effects in hovering flapping flight[J]. J Fluid Mech, 2012, 702:102-125. DOI: 10.1017/jfm.2012.163

Cited By

Cited by

Periodical cited type(2)

1.	李朋春，刘军民，周德开，李隆球. 面向航空风洞地面效应模拟的高速移动带地板装置的设计. 工程设计学报. 2024(04): 521-528 .
2.	白策，包芸，张淼，王光学. 迷你翼梢小翼增升减阻效应. 计算机辅助工程. 2019(02): 4-10 .

Other cited types(2)

Get Citation

PDF

XML

Article Metrics

Article views (219) PDF downloads (10) Cited by(4)

Experimental study on drag-reduction mechanisms based on the physical characteristic of tip vortex

Abstract

References

Cited by

Periodical cited type(2)

Other cited types(2)

Catalog

Article Metrics

Related

Experimental study on drag-reduction mechanisms based on the physical characteristic of tip vortex

Abstract

References

Cited by

Periodical cited type(2)

Other cited types(2)

Catalog

Article Metrics

Related

Export File

Citation

Format

Content