Effect of relative camber on the aerodynamic performance improvement of asymmetrical blunt trailing-edge modification

作者： | X. Zhang, G. G. Wang, M. J. Zhang, W. Li |

作者单位： |
^{1}Tianjin Polytechnic University^{2}State Key Laboratory of Building Safety and Built Environment^{3}Tianjin Chengjian University |

刊名： | Journal of Engineering Thermophysics, 2017, Vol.26 (4), pp.514-531 |

来源数据库： | Springer Nature Journal |

DOI： | 10.1134/S1810232817040075 |

原始语种摘要： | In this paper, the aerodynamic performance of the S series of wind turbine airfoils with different relative cambers and their modifications is numerically studied to facilitate a greater understanding of the effects of relative camber on the aerodynamic performance improvement of asymmetrical blunt trailing-edge modification. The mathematical expression of the blunt trailing-edge modification profile is established using the cubic spline function, and S812, S816 and S830 airfoils are modified to be asymmetrical blunt trailing-edge airfoils with different thicknesses. The prediction capabilities of two turbulence models, the k - ω SST model and the S-A model, are assessed. It is observed that the k - ω SST model predicts the lift and drag coefficients of S812 airfoil more accurately... |