Journal of Northeastern University:Natural Science ›› 2015, Vol. 36 ›› Issue (9): 1310-1315.DOI: 10.3969/j.issn.1005-3026.2015.09.021

• Mechanical Engineering • Previous Articles     Next Articles

Design of Wind Turbine Airfoils Based on General Profile and Mesh Reconstitution

SUN Zhen-ye, CHEN Jin, XIE Yi, JIANG Chuan-hong   

  1. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China.
  • Received:2013-12-31 Revised:2013-12-31 Online:2015-09-15 Published:2015-09-14
  • Contact: CHEN Jin
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Abstract: Most of the airfoil representations do not have a large enough domain to select the optimal airfoil in that they mainly depend on control points and initial airfoils. Based on the parametric profile representation, which originated from Joukowski conformal transformation, an improved genetic algorithm was designed to obtain airfoils with a high lift-to-drag ratio. ICEM and FLUENT were coupled to generate airfoils, reconstruct mesh, set boundary conditions and calculate aerodynamic performances. The results showed that the new airfoil has a higher lift coefficient and lift-to-drag ratio in on-design and off-design operation conditions and at the main range of attack angles. This multidisciplinary design integrates well parametric representation and CFD simulation, which can also provide a reference for similar aerodynamic optimization designs.

Key words: wind turbine, airfoil profile, parametric representation, computational fluid dynamics (CFD), coupling design

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