摘要
基于k-ωSST湍流模型,对安装不同间距z和安装角αvg涡流发生器(VGs)的DU91-W2-250风力机翼段的动态失速过程进行数值研究。翼段做典型的正弦俯仰振荡运动,探究该过程中VGs安装参数对风力机翼段流动控制效果的影响。研究结果表明:改变z对气动影响非常小,改变αvg的影响较大;当z=6~8 mm,αvg=13.4°~16.4°时VGs改善翼段气动性能的效果较好;流向涡强度是影响VGs流动控制效果的一个主要因素。
Based on the k-ωSST turbulence model,the dynamic stall process of DU91-W2-250 airfoil segment with vortex generators(VGs)installedat different spacing(z)and installation angle(αvg)is numerically studied.The airfoil segment performs a typical sinusoidal pitch oscillation motion,and the influence of the VGs installation parameters on the flow control effect of the airfoil segment is investigated.It is found that changing the z has little effect on the aerodynamic performance,while changing the αvghas grea effect;when z is from 6 to 8 mm,and αvgis from 13.4°to 16.4°,the VGs have a good effect on improving the aerodynamic performance of the airfoil segment.The strength of streamwise vortices is a major factor affecting the flow control effect of VGs.
作者
江瑞芳
赵振宙
刘惠文
马远卓
陈明
冯俊鑫
Jiang Ruifang;Zhao Zhenzhou;Liu Huiwen;Ma Yuanzhuo;Chen Ming;Feng Junxin(College of Energy and Electrical Engineering,Hohai University,Nanjing 211100,China;Institute of Ocean and Off shore Engineering,Hohai University,Nantong 226019,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2023年第1期218-225,共8页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51876054
11502070)
南通市民生科技重点项目(MS22019018)。
关键词
风力机
数值模拟
流动控制
涡流发生器
安装间距
安装角
wind turbines
numerical simulation
flow control
vortex generators
installation spacing
installation angle
