Monitoring the rotation status of wind turbine blades using high-speed camera system

2013 ◽  
Author(s):  
Dongsheng Zhang ◽  
Jubing Chen ◽  
Qiang Wang ◽  
Kai Li
Keyword(s):  
Wind Turbine ◽  
High Speed ◽  
Turbine Blades ◽  
High Speed Camera ◽  
Wind Turbine Blades ◽  
Camera System

Design and Research on a Automatic Cleaning Device of Wind Turbine Blades

2013 ◽  
Vol 448-453 ◽  
pp. 3472-3475
Author(s):  
Tai Lv ◽  
Qiang Wang
Keyword(s):  
Wind Turbine ◽  
High Speed ◽  
Pressure Field ◽  
Turbine Blades ◽  
Positive Pressure ◽  
Wind Turbine Blades ◽  
Cleaning Device ◽  
Horizontal Axis Wind Turbines ◽  
Ash Deposit ◽  
Fluent Software

Aiming at ash deposit problem of wind turbine blades, a cleaning device for 10kW horizontal axis wind turbines was designed by applying the mechanism that ash deposit on blades surface was purged by high-speed flows from nozzle. Using fluent software, a numerical simulation was carried out in cleaning device, and its pressure field and velocity field in different cross section of wind turbine blades were simulated under cleaning state. The results showed that positive pressure zone created by cleaning device was formed on blades surface, and high-speed airflow purging blades surface was formed. As a result, the purpose of cleaning is achieved.

scholarly journals Wind Turbine Aerodynamic Performance by Lifting Line Method

1998 ◽  
Vol 4 (3) ◽  
pp. 141-149 ◽  
Author(s):  
Horia Dumitrescu ◽  
Vladimir Cardos
Keyword(s):  
Wind Turbine ◽  
High Speed ◽  
Turbine Blades ◽  
Numerical Data ◽  
Computational Effort ◽  
Horizontal Axis ◽  
Wind Turbine Blades ◽  
Horizontal Axis Wind Turbine ◽  
Trailing Vortices ◽  
Free Wake

The vortex model of propellers is modified and applied to the high-speed horizontal axis turbines. The turbine blades are replaced by lifting lines and trailing vortices which shed along the blade span. The model is not a free wake model, but it is still a nonlinear one which should be solved iteratively. In addition to the regular case where the trailing vortices are constrained to distribute along a helical surface, another version, where each trailing vortex sheding from the blade grows as a free helical vortex line, is also included. Performance parameters are calculated by application of the Biot-Savart law along with the Kutta-Joukowski theorem. Predictions are, shown to compare favorably with existing numerical data from more involved free wake methods, but require less computational effort. Thereby, the present method may be a very useful tool for calculating the aerodynamic loads on horizontal-axis wind turbine blades.

scholarly journals Performances and Stall Delays of Three Dimensional Wind Turbine Blade Plate-Models with Helicopter-Like Propeller Blade Tips

2017 ◽  
Vol 11 (10) ◽  
pp. 189 ◽  
Author(s):  
Sutrisno Sutrisno ◽  
Deendarlianto Deendarlianto ◽  
Indarto Indarto ◽  
Sigit Iswahyudi ◽  
Muhammad Agung Bramantya ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
High Speed ◽  
Turbine Blades ◽  
Three Dimensional ◽  
Laminar Flows ◽  
Wind Turbine Blade ◽  
Mathematical Form ◽  
Wind Turbine Blades ◽  
Blade Tips

The research on three dimensional (3-D) wind turbine blades has been introduced (Sutrisno, Prajitno, Purnomo, & B.W. Setyawan, 2016). In the current experiment, the 3-D wind turbine blades would be fitted with helicopter-like blade tips and additional fins to the blade hubs to demonstrate some laminarizing features. It was found that additional helicopter-like blade tip to the turbine blade creates strong laminar flows over the surface of the blade tips. Supplementary, finned hub, fitted to the blade body, creates rolled-up vortex flows, weakens the blade stall growth development, especially for blades at high-speed wind. A proposed mathematical form of modified lifting line model has been developed to pursue further 3-d blade development study of 3-d wind turbine blade. Rolled up vortex effects, developed by finned of the base hub, has been acknowledged could demolish the turbulent region, as well as laminarize the stall domain to intensify the induced wind turbine blade lift.

Experiments of Wind Turbine Blades with Rocket Triggered Lightning

2009 ◽  
Vol 129 (5) ◽  
pp. 689-695
Author(s):  
Masayuki Minowa ◽  
Shinichi Sumi ◽  
Masayasu Minami ◽  
Kenji Horii
Keyword(s):  
Wind Turbine ◽  
Turbine Blades ◽  
Wind Turbine Blades ◽  
Triggered Lightning

Folding of flexible hinges for aircraft wingtips and wind turbine blades

2021 ◽  
Author(s):  
Aileen G. Bowen Perez ◽  
Giovanni Zucco ◽  
Paul Weaver
Keyword(s):  
Wind Turbine ◽  
Turbine Blades ◽  
Wind Turbine Blades

Evaluation of the influence of wind speed and angle of attack on the aerodynamic effect of wind turbine blades

2017 ◽  
Author(s):  
Salete Alves ◽  
Luiz Guilherme Vieira Meira de Souza ◽  
Edália Azevedo de Faria ◽  
Maria Thereza dos Santos Silva ◽  
Ranaildo Silva
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Turbine Blades ◽  
Angle Of Attack ◽  
Wind Turbine Blades ◽  
Aerodynamic Effect
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