TY - JOUR
T1 - Aerodynamic Design of Megawatt Wind Turbine Blades with NPU-WA Airfoils
AU - Xu, Jianhua
AU - Han, Zhonghua
AU - Yan, Xiaochao
AU - Song, Wenping
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2020/6/10
Y1 - 2020/6/10
N2 - The NPU-WA airfoils were designed at high design lift coefficient and high Reynolds number, with small sensitivity of the maximum lift coefficient to leading edge roughness and excellent geometric compatibility. Compared to the widely used airfoils, the NPU-WA airfoils have higher lift-to-drag ratio and higher maximum lift coefficient. This paper aims to design a megawatt wind turbine blade in order to demonstrate the advantage of the NPU-WA airfoils. The distributions of chord length and twist angle for a 2 MW wind turbine blade are optimized by a kriging surrogate model-based optimizer, with aerodynamic performance being evaluated by blade element-momentum theory. Results show that compared with the baseline blade, the maximum power coefficient of the optimized NPU blade is larger, and the chord lengths at all span-wise sections are smaller, which is benefit to structural weight reduction. It is shown that the NPU-WA airfoils feature excellent aerodynamic for the design of megawatt wind turbine blades.
AB - The NPU-WA airfoils were designed at high design lift coefficient and high Reynolds number, with small sensitivity of the maximum lift coefficient to leading edge roughness and excellent geometric compatibility. Compared to the widely used airfoils, the NPU-WA airfoils have higher lift-to-drag ratio and higher maximum lift coefficient. This paper aims to design a megawatt wind turbine blade in order to demonstrate the advantage of the NPU-WA airfoils. The distributions of chord length and twist angle for a 2 MW wind turbine blade are optimized by a kriging surrogate model-based optimizer, with aerodynamic performance being evaluated by blade element-momentum theory. Results show that compared with the baseline blade, the maximum power coefficient of the optimized NPU blade is larger, and the chord lengths at all span-wise sections are smaller, which is benefit to structural weight reduction. It is shown that the NPU-WA airfoils feature excellent aerodynamic for the design of megawatt wind turbine blades.
UR - http://www.scopus.com/inward/record.url?scp=85087043982&partnerID=8YFLogxK
U2 - 10.1088/1755-1315/495/1/012018
DO - 10.1088/1755-1315/495/1/012018
M3 - 会议文章
AN - SCOPUS:85087043982
SN - 1755-1307
VL - 495
JO - IOP Conference Series: Earth and Environmental Science
JF - IOP Conference Series: Earth and Environmental Science
IS - 1
M1 - 012018
T2 - 4th International Conference on Environmental and Energy Engineering, IC3E 2020
Y2 - 12 March 2020 through 15 March 2020
ER -