Experimental and CFD study on the mechanism of supercritical airfoil drag reduction with micro vortex generators

Zhang Jin; Liu Jingyuan; Zhang Binqian

doi:10.11729/syltlx20150157

Volume 30 Issue 4

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Journal of Experiments in Fluid Mechanics > 2016 > 30(4): 37-41. > DOI: 10.11729/syltlx20150157

Zhang Jin, Liu Jingyuan, Zhang Binqian. Experimental and CFD study on the mechanism of supercritical airfoil drag reduction with micro vortex generators[J]. Journal of Experiments in Fluid Mechanics, 2016, 30(4): 37-41. DOI: 10.11729/syltlx20150157

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Experimental and CFD study on the mechanism of supercritical airfoil drag reduction with micro vortex generators

1.
School of Aircraft Engineering, Nanchang Hangkong University, Nanchang 330063, China
2.
School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China

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Received Date: December 24, 2015
Revised Date: April 27, 2016

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Abstract

Wind tunnel and CFD methods are used to investigate the mechanism of the airfoil drag reduction with Micro Vortex Generators (MVGs). RANS and κ-ε turbulence model are used in CFD calculation. The results indicate that with MVGs, the bottom flow is directed to upper domains and thus the boundary layer flow is mixed. Therefore the averaged turbulence kinetic energy near the wall as well as the fluctuating pressure at the rear increases, so the pressure drag decreases. The gradient of the chord velocity and the turbulent viscosity decrease, but the gradient of the span velocity and fluctuating pressure increase more notably, so the turbulence stress increases and the frictional drag increases. MVGs are too small enough to be submerged in the boundary layer flow, and only mix the boundary layer flow. They have little influence on the height of boundary layer and the lift coefficient.
- Micro Vortex Generator,
- supercritical airfoil,
- averaged turbulence kinetic energy,
- fluctuating pressure,
- turbulence stress

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References

[1]	Whitcomb, Richard T, Clark Larry R. An airfoil shape for efficient flight at supercritical Mach number[R]. NASA TM 1109, 1965.
[2]	郝礼书, 高超, 张正科, 等. 超临界翼型跨音速特性实验研究[J]. 实验流体力学, 2013, 28(5): 601-606. http://www.cnki.com.cn/Article/CJFDTOTAL-SYLX201305008.htm Hao L S, Gao C, Zhang Z K,et al. Experimental investigation of the supercritical airfoil transonic characteristics[J]. Journal of Experiments in Fluid Mechanics, 2013, 28(5): 601-606. http://www.cnki.com.cn/Article/CJFDTOTAL-SYLX201305008.htm
[3]	牟让科, 杨永年, 叶正寅. 超临界翼型的跨音速抖振特性[J]. 计算物理, 2001, 18(5): 477-480. http://www.cnki.com.cn/Article/CJFDTOTAL-JSWL200105019.htm Mu R K, Yang Y N, Ye Z Y. Airfoil at transonic flow[J]. Chinese Journal of Computational Physics, 2001, 18(5): 477-480. http://www.cnki.com.cn/Article/CJFDTOTAL-JSWL200105019.htm
[4]	Harris C D. NASA supercritical airfoil a matrix of family-related airfoil[R]. NASA TP 2969, 1990.
[5]	李盈盈, 周洲, 甘文彪. 多鼓包技术在超临界翼型上的减阻特性研究[J]. 西北工业大学学报, 2013, 31(4): 517-520. http://www.cnki.com.cn/Article/CJFDTOTAL-XBGD201304004.htm Li Y Y, Zhou Z, Gan W B. Drag reduction research on multi-bump technology for supercritical airfoil[J]. Journal of Northwestern Polytechnical University, 2013. 31(4): 517-520. http://www.cnki.com.cn/Article/CJFDTOTAL-XBGD201304004.htm
[6]	张攀峰, 陈迎春, 左林玄, 等. 超临界翼型Gurney襟翼增升技术实验研究[J]. 实验流体力学, 2010, 24(4): 17-20. http://syltlx.cars.org.cn/CN/article/searchArticle.do# Zhang P F, Chen Y C, Zuo L X,et al. Experimental study on lift enhancement of supercritical airfoil in subsonic by Gurney flap[J]. Journal of Experiments in Fluid Mechanics, 2010, 24(4): 17-20. http://syltlx.cars.org.cn/CN/article/searchArticle.do#
[7]	何雨薇, 刘沛清, 段会申, 等. 超临界翼型吸气层流减阻控制数值研究[J]. 航空动力学报, 2010(11): 2443-2449. http://www.cnki.com.cn/Article/CJFDTOTAL-HKDI201011007.htm He Y W, Liu P Q, Duan H S, et al. Numerical investigation of the laminar and drag reduction control by using suction technology on a supercritical airfoil[J]. Journal of Aerospace Power, 2010. 25(11): 2443-2449. http://www.cnki.com.cn/Article/CJFDTOTAL-HKDI201011007.htm
[8]	Jukes T N, Segawa T, Furutani H. Flow control on a NACA 4418 Using Dielectric-barrier-discharge Vortex Generators[J]. AIAA Journal, 2013, 51(2): 452-464. DOI: 10.2514/1.J051852
[9]	倪亚琴. 涡流发生器研制及其对边界层的影响研究[J]. 空气动力学学报, 1995, 13(1): 110-116. http://www.cnki.com.cn/Article/CJFDTOTAL-KQDX501.017.htm Ni Y Q. Development of thevortex generator and study on the effect of vortex generator on boundary layer[J]. Acta Aerodynamica Sinica, 1995, 13(1): 110-116. http://www.cnki.com.cn/Article/CJFDTOTAL-KQDX501.017.htm
[10]	Bragg M B, Gregorek G M. Experimental study of aircraft performance with vortex generators[J]. Journal of Aircraft, 1987, 24(5): 305-309. DOI: 10.2514/3.45445
[11]	Tai T C. Effect of micro-vortex generators on V-22 aircraft forward-flight aerodynamics[R]. AIAA-2002-0553, 2002.
[12]	John C Lin. Review of research on low-profile Vortex generators to control boundary-layer separation[J]. Progress in Aerospace Sciences, 2002, 38: 389-420. DOI: 10.1016/S0376-0421(02)00010-6
[13]	张进, 张彬乾, 阎文成, 等. 微型涡流发生器控制超临界翼型边界层分离实验研究[J]. 实验流体力学, 2005, 19(3): 58-60. http://syltlx.cars.org.cn/CN/article/searchArticle.do# Zhang J, Zhang B Q, Yan W C, et al. Investigation of boundary layer separation control for supercritical airfoil using micro vortex generator[J]. Journal of Experiments in Fluid Mechanics, 2005, 19(3): 58-60. http://syltlx.cars.org.cn/CN/article/searchArticle.do#
[14]	张进. 涡流发生器控制超临界机翼附面层分离研究[D]. 西安: 西北工业大学, 2005: 42-46. Zhang J. Investigation ofboundary layer separation control for supercritical airfoil using vortex generator[D]. Xi'an: Northwestern Polytechnical University, 2005: 42-46.
[15]	褚胡冰, 张彬乾, 陈迎春, 等. 微型涡流发生器控制增升装置流动分离研究[J]. 西北工业大学学报, 2011, 29(5): 799-805. http://www.cnki.com.cn/Article/CJFDTOTAL-XBGD201105035.htm Chu H B, Zhang B Q, Chen Y C, et al. Controlling flow separation of high lift transport aircraft with micro vortex generators[J]. Journal of Northwestern Polytechnical University, 2011, 29(5): 799-805. http://www.cnki.com.cn/Article/CJFDTOTAL-XBGD201105035.htm
[16]	刘刚, 刘伟, 牟斌, 等. 涡流发生器数值计算方法研究[J]. 空气动力学学报, 2007, 25(2): 241-244. http://www.cnki.com.cn/Article/CJFDTOTAL-KQDX200702018.htm Liu G, Liu W, Mou B, et al. CFD numerical simulation investigation of vortex generators[J]. Acta Aerodynamica Sinica, 2007, 25(2): 241-244. http://www.cnki.com.cn/Article/CJFDTOTAL-KQDX200702018.htm
[17]	焦予秦, 张彬乾, 金承信, 等. 翼型气动力直接测量风洞试验技术探索[J]. 实验流体力学, 2005, 19(2): 40-44. http://syltlx.cars.org.cn/CN/article/searchArticle.do# Jiao Y Q, Zhang B Q, Jin C X, et al. Experimental technique on direct measuring of aerodynamic forces of airfoil[J]. Journal of Experiments in Fluid Mechanics, 2005, 19(2): 40-44. http://syltlx.cars.org.cn/CN/article/searchArticle.do#
[18]	Tuncer Cebeci, Jean Cousteix. Modeling and computation of boundary-layer flows[M]. Berlin: Springer, 1998: 39-42.

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