Numerical simulation and experimental validation of ultrasonic de-icing system for wind turbine blade

2016 ◽  
Vol 114 ◽  
pp. 19-26 ◽  
Author(s):  
Congbo Yin ◽  
Zhendong Zhang ◽  
Zhenjun Wang ◽  
Hui Guo
Keyword(s):  
Numerical Simulation ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Experimental Validation ◽  
Wind Turbine Blade

Structural testing and numerical simulation of a 34m composite wind turbine blade

2006 ◽  
Vol 76 (1-2) ◽  
pp. 52-61 ◽  
Author(s):  
F.M. Jensen ◽  
B.G. Falzon ◽  
J. Ankersen ◽  
H. Stang
Keyword(s):  
Numerical Simulation ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Structural Testing

scholarly journals Dynamic Instability of a Wind Turbine Blade Due to Large Deflections: An Experimental Validation

2020 ◽  
Vol 66 (9) ◽  
pp. 523-533
Author(s):  
Andres Lopez-Lopez ◽  
Jose Billerman Robles-Ocampo ◽  
Perla Yazmin Sevilla-Camacho ◽  
Orlando Lastres-Danguillecourt ◽  
Jesús Muniz ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Experimental Validation ◽  
Dynamic Instability ◽  
Turbine Blades ◽  
Wind Turbine Blade ◽  
Large Deflections ◽  
Wind Turbine Blades ◽  
Non Linear ◽  
Linear Behaviour

Wind turbine blades are designed to be thin and flexible elements. Because unstable dynamic behaviour can affect the life of the rotor, it is crucial to understand the instability of non-linear behaviour caused by large deflections. The present study undertakes both a stability analysis of the non-linear response and an experimental validation of a simplified model for a wind turbine blade based on a cantilever beam. The model is formulated taking into account large geometric deflections and assuming a Galerkin approach. The model is validated experimentally in a wind tunnel with aluminium beams of differing geometry. Analysis of the dynamic response using phase planes reveals that the degree of instability is related to the amplitude of the excitation and the stiffness characteristics.

Numerical optimization of horizontal-axis wind turbine blades with surrogate model

2020 ◽  
pp. 095765092097674
Author(s):  
Haipeng Wang ◽  
Xiao Jiang ◽  
Yun Chao ◽  
Qian Li ◽  
Mingzhou Li ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Wind Turbine ◽  
Wind Power ◽  
Turbine Blade ◽  
Surrogate Model ◽  
Turbine Blades ◽  
Wind Turbine Blade ◽  
Horizontal Axis ◽  
Horizontal Axis Wind Turbine ◽  
Thrust And Torque

Wind energy is a widely used and developed the renewable energy, which has developed rapidly. At present, the design of the horizontal axis wind turbine blade mainly used Blade Element Momentum theory. In this paper, an optimization method of the wind turbine blade was proposed for improving the output power. The local twist angles of the blade were optimized. This method combined the surrogate model and the numerical simulation methods. The kriging surrogate model was selected and the next calibration point was chosen by the efficient global optimization algorithm. In this paper, the aerodynamic performances of the optimized blades were discussed in detail and obtained by the numerical simulation method. It was shown that the wind power coefficients and the output powers of the optimized blades were increased. The wind power coefficients of two optimized blades were increased by 4.83% and 3.44%, respectively. The optimized blades were able to capture more kinetic energy from the wind, but the optimized blades were subjected to a greater structural load. The thrust and torque coefficients maintained an increasing tendency for the optimized blades.

scholarly journals Numerical Simulation of Surface Roughness Effects on Dynamic Stall of Wind Turbine Blade

2013 ◽  
Vol 7 (1) ◽  
pp. 32-48 ◽  
Author(s):  
Belkheir NOURA ◽  
Sofiane KHELLADI ◽  
Rabah DIZENE ◽  
Farid BAKIR
Keyword(s):  
Numerical Simulation ◽  
Surface Roughness ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Dynamic Stall ◽  
Roughness Effects
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