Optimal Design for the Blunt Trailing-Edge Profile of Wind Turbine Airfoils under Glaze Ice Conditions

The adoption of blunt trailing edge airfoils for the inner regions of large wind turbine blades has been proposed. Blunt trailing edge airfoils would not only provide increased structural volume, but have also been found to improve the lift characteristics of airfoils and therefore allow for section shapes with a greater maximum thickness. Limited experimental data makes it difficult for wind turbine designers to consider and conduct tradeoff studies using these section shapes. This lack of experimental data precipitated the present analysis of blunt trailing edge airfoils using computational fluid dynamics. Several computational techniques are applied including a viscous/inviscid interaction method and several Reynolds-averaged Navier-Stokes methods.

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Optimal design of wind turbine airfoils based on functional integral and curvature smooth continuous theory

Aerospace Science and Technology ◽

10.1016/j.ast.2016.05.004 ◽

2016 ◽

Vol 55 ◽

pp. 34-42 ◽

Cited By ~ 6

Author(s):

Quan Wang ◽

Jun Wang ◽

Jinfeng Sun ◽

Jun Ren ◽

Qiong Wei

Keyword(s):

Optimal Design ◽

Wind Turbine ◽

Functional Integral ◽

Continuous Theory ◽

Turbine Airfoils

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Active Circulation Control on the Blunt Trailing Edge Wind Turbine Airfoil

AIAA Journal ◽

10.2514/1.j056223 ◽

2018 ◽

Vol 56 (2) ◽

pp. 554-570 ◽

Cited By ~ 6

Author(s):

He-Yong Xu ◽

Chen-Liang Qiao ◽

Hui-Qiang Yang ◽

Zheng-Yin Ye

Keyword(s):

Wind Turbine ◽

Circulation Control ◽

Trailing Edge ◽

Blunt Trailing Edge ◽

Wind Turbine Airfoil

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Research on Correction to Fitting Factors of Shape Function and Convergence of Wind Turbine Airfoils

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.705.313 ◽

2014 ◽

Vol 705 ◽

pp. 313-319

Author(s):

Ya Qiong Chen ◽

Yue Fa Fang ◽

Sheng Guo ◽

Zhi Hong Chen

Keyword(s):

Optimal Design ◽

Mathematical Models ◽

Wind Turbine ◽

Shape Function ◽

Parametric Representation ◽

Functional Expression ◽

Residual Error ◽

Minimal Order ◽

Iterative Calculation ◽

Turbine Airfoils

Based on the functional expression methods of wind turbine airfoils, the method of the correction to parameter factors of shape function by iterative calculation in the principle of making the residual error minimum between the fitting airfoil and the target airfoil is presented in this paper, which makes the fitting precision improved compared with the parametric representation of original airfoils. The method of the correction to parameter factors of shape function proposed in this paper is used for parametric representation of more than 20 kinds of typical airfoils and then the geometric and aerodynamic convergence are intensive studied. The results show that the minimal order of the integrated expression of airfoils is decreased by the proposed method in this paper and the mathematical models of airfoils which facilitate the unification of optimal design are established.

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