流体机械2011，Vol.39Issue(6)：21-24,4.DOI:10.3969/j.issn.1005-0329.2011.06.006
Gurney襟翼对风力机叶片翼型气动特性影响的数值模拟
Numerical Simulation for the Influence of Gurney Flap on Aerodynamic Characteristic of Blade Aerofoil of Wind Turbine
摘要
Abstract
First of all, since the turbulence model affects numerical results, the NACA0015 airfoil is simulated by using Spalart-Allmaras and SST k-ωmodels separately. The differences between the two turbulence models are compared, and come to a more accurate S-A turbulence model to this airfoil. And then numerical simulations are carried out for NACA0015 aerofoil modification with different height of Gurney flap, the height of the flap is respectively 1％c、2％c and 4％c(chord length of blade), and thickness of 2mm. The result shows that the aerofoil with Gurney flap has significantly increased lift coefficient and lift-drag ratio compared with aerofoil prototype, and the pressure distributions of pressure surface and suction surface are notably improved.With height of the flap of 2％ chord length, it can achieve the output in the best lift-drag ratio under steady state.关键词
NACA0015翼型/Gurney襟翼/升阻比/升力系数Key words
NACA0015 aerofoil/ Gurney flap/ lift-drag ratio/ lift coefficient分类
能源科技引用本文复制引用
王茜,皇甫凯林,徐璋,钟英杰..Gurney襟翼对风力机叶片翼型气动特性影响的数值模拟[J].流体机械,2011,39(6):21-24,4.
