风力机叶型增升及叶尖流动控制研究

白亚磊; 马兴宇; 明晓

doi:10.3879/j.issn.1000-0887.2011.07.002

风力机叶型增升及叶尖流动控制研究

doi: 10.3879/j.issn.1000-0887.2011.07.002

南京航空航天大学空气动力学系, 南京 210016

基金项目: 国家“973”基金资助项目(2007CB714600)

详细信息

作者简介:
白亚磊(1982- ),男,河南南阳人,博士(E-mail:by@lnuaa.edu.cn);明晓(1944- ),男,武汉人,教授,博士生导师(联系人.Tel:+86-25-84892651;E-mail:mingam@nuaa.edu.cn).

中图分类号: O354.1
计量
- 文章访问数: 2318
- HTML全文浏览量: 351
- PDF下载量: 1120
- 被引次数: 0
出版历程
- 收稿日期: 2011-02-21
- 修回日期: 2011-05-16
- 刊出日期: 2011-07-15

Lift Enhancement of the Airfoil and Tip Flow Control for Wind Turbine

Department of Aerodynamics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China

摘要

摘要: 研究了两种改善风力机叶型气动性能的流动控制技术，分别对风力机专用S809翼型和较大升阻比的FX 60-100翼型进行应用研究．首先，通过在叶型前缘加装流动偏转器，研究流动偏转器对叶型流动分离的控制效果．并采用多岛基因算法，对流动偏转器进行多参数优化．结果表明：流动偏转器可以有效控制叶型的失速特性，推迟失速攻角和增加升力；基因优化算法能更大地提升流动偏转器的控制效果．其次，基于对风力机叶尖旋涡和尾涡特征以及叶片表面压力分布的分析，在叶片尖部加装不同倾斜角的旋涡扩散器控制叶尖涡．结果表明：涡扩散器能够提高叶尖涡涡核的总压，削弱其旋涡强度，使风力机尾流旋涡耗散更快，从而可以减小噪声，提高叶片效率．
- 流动控制 /
- 流动分离 /
- 流动偏转器 /
- 多岛基因算法 /
- 叶尖涡 /
- 涡扩散器
Abstract: Two techniques that miprove the aerodynamic performance of wind turbine airfoils were described. The airfoil S809, often used forwind turbine design, and the airfoil FX60-100, having higher lift-dragratio, were selected to verify the flow control techniques. The flow deflector, fixed at the leadingedge, was employed to control the boundary layer separation on the a irfoil at high angle of attack. The multiisland genetic algorithm was used to optimize the parameters of the flow deflector. The results indicate that the flow deflector can suppress the flow separation, delay stall and enhance the lift. In the second part of this paper, the characteristics o f the blade tipvortex, wake vortex and the surface pressured istributions of blades are analyzed. The vortex diffuser, set up at the blade tip, was employed to control the blade tipvortex. The results show that the vortex diffuser can increase the total pressure coefficient of the core of the vortex, decrease the strength of blade tipvortex, lower the noise and improve the efficiency of the blade.
- flow control /
- flow separation /
- flow deflector /
- multi-is land genetic algorithm /
- blade tipvortex /
- vortex diffuser

HTML全文

参考文献(14)

[1]	Grasso F. Usage of numerical optimization in wind turbine airfoil design[C]28th AIAA Applied Aerodynamics Conference, 28-30 June 2010, 2010-4404. Chicago: USA AIAA.
[2]	Chang T L, Rachman A， Tsai H M. Flow control of an airfoil via injection and suction[J]. Journal of Aircraft, 2009, 46(1): 291-300. doi: 10.2514/1.38394
[3]	Nikolic V R. Effect of gurney flap relative span on lift, drag, and trailing vortex of a rectangular wing[C]25th AIAA Applied Aerodynamics Conference, 25-28 June 2007, 2007-4062. Miami: USA AIAA.
[4]	李应红，吴云，张朴.等离子体激励抑制翼型失速分离的实验研究[J].空气动力学学报, 2008, 26(3):372-377.(LI Ying-hong, WU Yun， ZHANG Pu. Experimental investigation on airfoil stall separation suppression by plasma actuation[J]. Acta Aerodynamica Sinica, 2008, 26(3):372-377.(in Chinese))
[5]	周立胜，明晓，白亚磊. 流动偏转器对机翼失速特性的控制[J].空气动力学学报,2011, 29(1):20-25.(ZHOU Li-sheng, MING Xiao, BAI Ya-lei. Wing stall control by flow deflector[J]. Acta Aerodynamica Sinica, 2011, 29(1):20-25. (in Chinese))
[6]	Hansen Martin O L. 风力机空气动力学[M]. 北京: 中国电力出版社, 2009: 16-22. (Hansen Martin O L. Aerodynamics of Wind Turbines[M]. Beijing: China Power Press, 2009: 16-22. (in Chinese))
[7]	Johasen J, Gaunaa M, Sorensen N. Increased aerodynamic efficiency on wind turbine rotor suing winglets[C]26th AIAA Applied Aerodynamics Conference, 18-21 August 2008, 2008-6728. Hawaii: USA AIAA.
[8]	东雪青. 风力机叶尖加小翼流场的试验研究[J]. 工程热物理学报, 2009, 30(10): 1162-1164.(DONG Xue-qing. Investigation of fluid field in wind turbine with tip vane[J]. Journal of Engineering Thermophysics, 2009, 30(10): 1162-1164. (in Chinese))
[9]	余永生. 翼稍涡的结构与控制方法探索[J]. 空气动力学学报, 1999, 17(4): 405-412.(YU Yong-sheng. The structure of wingtip vortex and investigation for the method of wingtip vortex control[J]. Acta Aerodynamica Sinica, 1999, 17(4): 405-412. ( in Chinese))
[10]	MING Xiao. Drag reduction of a civil aircraft by wing tip devices[C]Sixth Asian Conference of Fluid Mechanics. Singapore, 1995.
[11]	Butterfield C P, Scott George, Musial Walt. Comparison of wind tunnel airfoil performance data with wind turbine blade data[J]. ASME Journal of Solar Energy Engineering, 1992, 114(4): 119-124. doi: 10.1115/1.2929989
[12]	HUANG Liang, George H, Raymond L, Jhomas H. Optimization of airfoil flow control using a genetic algorithm with diversity control[J]. Journal of Aircraft, 2007, 44(4):1337-1349. doi: 10.2514/1.27020
[13]	韩占中, 王敬. FLUENT流体工程仿真计算实例与应用[M]. 北京：北京理工大学出版社, 2004.(HAN Zhan-zhong,WANG Jing. FLUENT Example and Application of Flow Engineering Simulation[M]. Beijing: Institute of Technology Press, 2004. (in Chinese))
[14]	苏绍禹. 风力发电机设计与运行维护[M]. 北京：中国电力出版社, 2003.(SU Shao-yu. Design and Operation of Wind Turbine[M]. Beijing: China Power Press, 2003. (in Chinese))