Experimental investigation on structural collapse of a large composite wind turbine blade under combined bending and torsion

2017 ◽  
Vol 160 ◽  
pp. 435-445 ◽  
Author(s):  
Xiao Chen
Keyword(s):  
Experimental Investigation ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Structural Collapse

Experimental investigation of the effect of active flow control on the wake of a wind turbine blade

2021 ◽  
pp. 095440622110089
Author(s):  
GholamHossein Maleki ◽  
Ali Reza Davari ◽  
Mohammad Reza Soltani
Keyword(s):  
Experimental Investigation ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Active Flow Control ◽  
Leading Edge ◽  
Wind Turbine Blade ◽  
Plasma Actuators ◽  
Plasma Actuation ◽  
Surface Pressure Distribution ◽  
Stall Angle

An extensive experimental investigation was conducted to study the effects of Dielectric Barrier Discharge (DBD), on the flow field of an airfoil at low Reynolds number. The DBD was mounted near the leading edge of a section of a wind turbine blade. It is believed that DBD can postpone the separation point on the airfoil by injecting momentum to the flow. The effects of steady actuations on the velocity profiles in the wake region have been investigated. The tests were performed at α = 4 to 36 degrees i.e. from low to deep stall angles of attack regions. Both surface pressure distribution and wake profile show remarkable improvement at high angles of attack, beyond the static stall angle of the airfoil when the plasma actuation was implemented. The drag calculated from the wake momentum deficit has further shown the favorable role of the plasma actuators to control the flow over the airfoil at incidences beyond the static stall angle of attack of this airfoil. The results demonstrated that DBD has been able to postpone the stall onset significantly. It has been observed that the best performance for the plasma actuation for this airfoil is in the deep stall angles of attack range. However, below and near the static stall angles of attack, plasma augmentation was pointed out to have a negligible improvement in the aerodynamic behavior.

Structural collapse characteristics of a 48.8 m wind turbine blade under ultimate bending loading

2019 ◽  
Vol 106 ◽  
pp. 104150 ◽  
Author(s):  
Lei'an Zhang ◽  
Yanzhen Guo ◽  
Liangfeng Yu ◽  
Xiuting Wei ◽  
Weisheng Liu ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Structural Collapse ◽  
Collapse Characteristics ◽  
Bending Loading

Structural investigation of composite wind turbine blade considering structural collapse in full-scale static tests

2013 ◽  
Vol 97 ◽  
pp. 15-29 ◽  
Author(s):  
Jinshui Yang ◽  
Chaoyi Peng ◽  
Jiayu Xiao ◽  
Jingcheng Zeng ◽  
Suli Xing ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Structural Investigation ◽  
Full Scale ◽  
Wind Turbine Blade ◽  
Structural Collapse ◽  
Static Tests
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