Design optimization of a wind turbine blade to reduce the fluctuating unsteady aerodynamic load in turbulent wind

2012 ◽  
Vol 26 (3) ◽  
pp. 827-838 ◽  
Author(s):  
Jihoon Jeong ◽  
Kyunghyun Park ◽  
Sangook Jun ◽  
Kisun Song ◽  
Dong-Ho Lee
Keyword(s):  
Wind Turbine ◽  
Design Optimization ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Aerodynamic Load ◽  
Turbulent Wind ◽  
Unsteady Aerodynamic

Simplified Procedure to Estimate the Wind Turbine Blade Aerodynamic Loadings Without Using CFD

2013 ◽  
Author(s):  
Fouad Mohammad ◽  
Emmanuel Ayorinde
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Equations Of Motion ◽  
Wind Turbine Blade ◽  
Aerodynamic Load ◽  
Horizontal Axis Wind Turbine ◽  
Cross Sectional ◽  
Flow Angle ◽  
Blade Length ◽  
The Right

The aerodynamic loadings that act on the blade of a horizontal axis wind turbine change as a function of time due to the instantaneous change of the wind speed, the wind direction and the blade position. The new contribution in this study is the introduction of a simplified non CFD based procedure for the calculation of all the aerodynamic loadings acting on a wind turbine blade. The premise of the current simplified model is that (a) the forces can be modeled by a set of point loads rather than distributed pressures, and (b) the magnitudes of these point loads can be estimated using the below load formulas, (c) an interpolation scheme needed to have all computed forces and moments as a function of the blade lengthwise x. Considering a 14m blade length and utilizing a time dependent set of parameters such as angle of attack, material and air density, wind and blade speed, flow angle, yaw, pitch angles, the centrifugal forces (along x-direction of the blade length), the cross-sectional forces (Fy and Fz) and the twisting moment of the blade (about the x-direction) were calculated for each of all the given time steps. After that the authors explain how to interpolate the calculated loadings (forces and twisting moment) and the right formulas to compute the aerodynamic load vector (the right side of the dynamic equations of motion).

scholarly journals Design optimization of a curved wind turbine blade using neural networks and an aero-elastic vortex method under turbulent inflow

2020 ◽  
Vol 146 ◽  
pp. 1524-1535 ◽  
Author(s):  
Matias Sessarego ◽  
Ju Feng ◽  
Néstor Ramos-García ◽  
Sergio González Horcas
Keyword(s):  
Neural Networks ◽  
Wind Turbine ◽  
Design Optimization ◽  
Turbine Blade ◽  
Vortex Method ◽  
Wind Turbine Blade ◽  
Turbulent Inflow

Aeroelastic multidisciplinary design optimization of a swept wind turbine blade

Wind Energy ◽  
2017 ◽  
Vol 20 (12) ◽  
pp. 1941-1953 ◽  
Author(s):  
Christian Pavese ◽  
Carlo Tibaldi ◽  
Frederik Zahle ◽  
Taeseong Kim
Keyword(s):  
Wind Turbine ◽  
Design Optimization ◽  
Turbine Blade ◽  
Multidisciplinary Design Optimization ◽  
Wind Turbine Blade ◽  
Multidisciplinary Design

scholarly journals High Reynolds number wind turbine blade equipped with root spoilers. Part I: Unsteady aerodynamic analysis using URANS simulations

2021 ◽  
Author(s):  
Thomas Potentier ◽  
Emmanuel Guilmineau ◽  
Arthur Finez ◽  
Colin Le Bourdat ◽  
Caroline Braud
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
High Reynolds Number ◽  
Wind Turbine Blade ◽  
Unsteady Aerodynamic ◽  
Passive Devices ◽  
Power Spectral ◽  
Computational Fluid Dynamics Cfd ◽  
High Reynolds ◽  
Lift And Drag

Abstract. A wind turbine blade equipped with root spoilers is analysed using 2D Computational Fluid Dynamics (CFD) to assess the unsteady impact of passive devices. Several metrics such as lift and drag coefficients, pressure and instantaneous velocity field around the aerofoil, Power Spectral Density and Strouhal number are used in the 2D unsteady analysis. The spoiler is found to efficiently rearrange the flow, adding lift throughout the positive angles of attack. However, the drawback is a high drag penalty coupled with high unsteadiness of the aerodynamic forces.

scholarly journals Pointed Tip Shape Effect on Aerodynamic Load for NREL Phase VI Wind Turbine Blade

2015 ◽  
Vol 4 (4) ◽  
pp. 284-289
Author(s):  
Kyoungsoo Lee ◽  
Shrabanti Roy ◽  
Ziaul Huque ◽  
Raghava Kommalapati ◽  
Chao Sui ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Aerodynamic Load ◽  
Shape Effect ◽  
Nrel Phase Vi
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