为研究风沙环境下流动控制方式对于NACA 0012翼型气动性能和冲蚀磨损的影响,通过在风力机翼型前缘布置微小圆柱来控制气流流动,采用离散项模型和SST k-ω湍流模型对控制翼型进行数值计算。结果表明：攻角较小时,微小圆柱处于X=0.04、Y=-0.03位置时控制效果最佳,可抑制流动分离,相比原翼型升阻比提高149.72%;微小圆柱处于X=0.02、Y=-0.02位置时翼型冲蚀磨损的减小量最大,相比原翼型减小97.66%;微小圆柱处于最优区域时翼型升阻比提高的同时冲蚀磨损量也会减小。
Abstract
In order to study the effect of the flow control method on the aerodynamic performance and erosion wear of NACA 0012 airfoil in windy and sandy environment, this paper adopts the method of controlling airflow by arranging tiny cylinders on the leading edge of the wind turbine airfoil, and the discrete term model and SST k-ω turbulence model are used to numerically calculate the control airfoil.The results show that when the angle of attack is small, the best control effect is achieved when the position of the tiny cylinder is at X=0.04 and Y=-0.03, which can suppress the flow separation and increase the lift resistance ratio by 149.72% compared with the original airfoil; when the position of the tiny cylinder is at X=0.02 and Y=-0.02 the reduction of airfoil erosion wear is the greatest, which is reduced by 97.66% compared with the original airfoil; when the position of the tiny cylinder is in the optimal region, the airfoil erosion wear is reduced at the same time as the lift-to-resistance ratio is increased.
关键词
风力机 /
风沙环境 /
翼型 /
流动控制 /
磨损 /
气动性能 /
数值模拟
Key words
wind turbines /
sandy environment /
airfoils /
flow control /
erosion /
aerodynamic performance /
numerical simulation
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] BAE J S, KYONG N H, SEIGLER T M, et al.Aeroelastic considerations on shape control of an adaptive wing[J]. Journal of intelligent material systems and structures, 2005, 16(11/12): 1051-1056.
[2] ATIK H, KIM C Y, VAN DOMMELEN L L, et al. Boundary-layer separation control on a thin airfoil using local suction[J]. Journal of fluid mechanics, 2005, 535: 415-443.
[3] 董晓华, 孙晓晶. 翼型前缘微小平板的流动控制方法和数值模拟[J]. 上海大学学报(自然科学版), 2015, 21(3): 364-369.
DONG X H, SUN X J.Numerical study of flow separation control by setting small plate in front of leading edge of an airfoil[J]. Journal of Shanghai University (natural science edition), 2015, 21(3): 364-369.
[4] 司马浩, 童慧, 吴兆春, 等. 前缘微小平板对翼型气动性能影响的实验研究[J]. 热能动力工程, 2019, 34(11): 116-122.
SIMA H, TONG H, WU Z C, et al.Experimental study on the effect of small plate near the leading edge on aerodynamic performance of airfoil[J]. Journal of engineering for thermal energy and power, 2019, 34(11): 116-122.
[5] FIORE G, SELIG M S.Simulation of damage progression on wind turbine blades subject to particle erosion[C]//Proceedings of the 54th AIAA Aerospace Sciences Meeting. San Diego, California, USA, 2016.
[6] SAREEN A, SAPRE C A, SELIG M S.Effects of leading edge erosion on wind turbine blade performance[J]. Wind energy, 2014, 17(10): 1531-1542.
[7] LI D S, GONG Y X, LI R N, et al.Critical stokes number for gas-solid flow erosion of wind turbine airfoil[J]. Transactions of Nanjing University of Aeronautics and Astronautics, 2016, 33(1): 67-72.
[8] 王亚娥. 沙尘颗粒形状和粒径分布对风力机翼型的冲蚀磨损影响[D]. 兰州: 兰州理工大学, 2019.
WANG Y E.Effect of sand shape and size distribution on the erosion characteristics of wind turbine airfoil[D]. Lanzhou: Lanzhou University of Technology, 2019.
[9] 傅学刚. 风沙流对风力机叶片的冲蚀磨损及气动特性影响研究[D]. 兰州: 兰州理工大学, 2020.
FU X G.Research on the influence of wind-blown sand on erosion and aerodynamic characteristics of wind turbine blades[D]. Lanzhou: Lanzhou University of Technology, 2020.
[10] LADSON C L. Effects of independent variation of Mach and Reynolds numbers on the low-speed aerodynamic characteristics of the NACA0012 airfoil section[R]. L-16472 NASA-TM-4074 NAS 1.15: 4074,1988.
基金
国家自然科学基金（52166014）; 甘肃省基础研究创新群体项目（21JR7RA277）; 兰州理工大学红柳杰出青年人才资助计划
PDF(7316 KB)
