Three-Dimensional Solid Modeling of Large Wind Turbine Blade Based on Wilson Theory

2011 ◽  
pp. 7-10
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Three Dimensional ◽  
Solid Modeling ◽  
Wind Turbine Blade ◽  
Large Wind

Three-Dimensional and Rotational Aerodynamics on the NREL Phase VI Wind Turbine Blade

2008 ◽  
Vol 130 (3) ◽  
Author(s):  
Alvaro Gonzalez ◽  
Xabier Munduate
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Three Dimensional ◽  
Separated Flow ◽  
Leading Edge ◽  
Wind Turbine Blade ◽  
Trailing Edge ◽  
Rotating Blade ◽  
Nrel Phase Vi ◽  
Edge Separation

This work undertakes an aerodynamic analysis over the parked and the rotating NREL Phase VI wind turbine blade. The experimental sequences from NASA Ames wind tunnel selected for this study respond to the parked blade and the rotating configuration, both for the upwind, two-bladed wind turbine operating at nonyawed conditions. The objective is to bring some light into the nature of the flow field and especially the type of stall behavior observed when 2D aerofoil steady measurements are compared to the parked blade and the latter to the rotating one. From averaged pressure coefficients together with their standard deviation values, trailing and leading edge separated flow regions have been found, with the limitations of the repeatability of the flow encountered on the blade. Results for the parked blade show the progressive delay from tip to root of the trailing edge separation process, with respect to the 2D profile, and also reveal a local region of leading edge separated flow or bubble at the inner, 30% and 47% of the blade. For the rotating blade, results at inboard 30% and 47% stations show a dramatic suppression of the trailing edge separation, and the development of a leading edge separation structure connected with the extra lift.

Design and Analysis of Wind Turbine Blades: Winglet, Tubercle, and Slotted

2013 ◽  
Author(s):  
Alka Gupta ◽  
Abdulrahman Alsultan ◽  
R. S. Amano ◽  
Sourabh Kumar ◽  
Andrew D. Welsh
Keyword(s):  
Power Generation ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Alternative Energy ◽  
Turbine Blades ◽  
Three Dimensional ◽  
Wind Turbine Blade ◽  
Wind Turbine Blades ◽  
Wind Speeds ◽  
Governing Factor

Energy is the heart of today’s civilization and the demand seems to be increasing with our growing population. Alternative energy solutions are the future of energy, whereas the fossil-based fuels are finite and deemed to become extinct. The design of the wind turbine blade is the main governing factor that affects power generation from the wind turbine. Different airfoils, angle of twist and blade dimensions are the parameters that control the efficiency of the wind turbine. This study is aimed at investigating the aerodynamic performance of the wind turbine blade. In the present paper, we discuss innovative blade designs using the NACA 4412 airfoil, comparing them with a straight swept blade. The wake region was measured in the lab with a straight blade. All the results with different designs of blades were compared for their performance. A complete three-dimensional computational analysis was carried out to compare the power generation in each case for different wind speeds. It was found from the numerical analysis that the slotted blade yielded the most power generation among the other blade designs.

Study on Wind Turbine Blade Design Method and Modeling Technology

2011 ◽  
Vol 88-89 ◽  
pp. 549-553
Author(s):  
Wen Xian Tang ◽  
Cheng Cheng ◽  
Yun Di Cai ◽  
Fei Wang
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Design Method ◽  
Three Dimensional ◽  
Design Procedure ◽  
Wind Turbine Blade ◽  
Solid Model ◽  
Blade Design ◽  
Modeling Technology ◽  
Turbine Blade Design

According to the design procedure of wind turbine blade, a design method that can make CAD software joint used was brought up. Wilson method was used to design and calculate the main data of blade. On this basis, the three-dimensional solid model of wind turbine blade could get by using and playing the function of different CAD software. This study provided a reference for the design of wind turbine blade and other similar complicated structures, which settles the basis for the further analysis of blade.

Strength Evaluation of Composites for Large Wind Turbine Blade

2017 ◽  
Vol 2017 (0) ◽  
pp. OS1617
Author(s):  
Ryo UETA ◽  
Ming LUAN ◽  
Takashi HASHIMOTO ◽  
Takahiko SAWADA
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Strength Evaluation ◽  
Large Wind

Three Dimensional Modeling and Aerodynamic Analysis of MW Wind Turbine Blade

2011 ◽  
Vol 305 ◽  
pp. 274-278
Author(s):  
Hong Pan ◽  
Wen Lei Sun ◽  
Lian Ying He
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Three Dimensional ◽  
Aerodynamic Performance ◽  
Wind Turbine Blade ◽  
Transformation Theory ◽  
Aerodynamic Analysis ◽  
Blade Element Theory ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling

Wind turbine blade is one of the key components of wind turbine, and its aerodynamic performance largely determine the reliability of wind turbine. This paper use the momentum - blade element theory, and correction by Prandtl, Wilson correction, Glauert correction and other methods to modify the model of the blade to come to the aerodynamic model, then using the point of the coordinate transformation theory each the airfoil two dimensional coordinate will conversion into space coordinates, using UG of three-dimensional modeling software to model, and finally the aerodynamic performance of airfoil is analyzed. Through modeling and aerodynamic analysis, for the following structure optimization and control strategy laid a foundation.

Full-field inspection of a wind turbine blade using three-dimensional digital image correlation

2011 ◽  
Author(s):  
Bruce LeBlanc ◽  
Christopher Niezrecki ◽  
Peter Avitabile ◽  
Julie Chen ◽  
James Sherwood ◽  
...  
Keyword(s):  
Digital Image Correlation ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Digital Image ◽  
Three Dimensional ◽  
Wind Turbine Blade ◽  
Image Correlation ◽  
Full Field ◽  
Field Inspection

scholarly journals Investigation of problems in modeling critical loads on a composite model of a wind turbine blade

2021 ◽  
pp. 101-105
Author(s):  
Oleksiy Domin ◽  
Oleksiy Larin
Keyword(s):  
Finite Element ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Critical Loads ◽  
Layer Structure ◽  
Three Dimensional ◽  
Element Model ◽  
Wind Turbine Blade ◽  
Structural Deformation ◽  
Strength Analysis

This article deals with the problems of designing and analysis of the deformed state of the wind turbine blade under critical loads. A three-dimensional shell simulation model is built, taking into account the complex curvilinear geometry and the presence of reinforcing internal parts. The determination of the parameters of the stress-strain state under the influence of wind load was carried out on the basis of the finite element method. A shell ten-node isoparametric finite element was used. The constructed finite element model of the blade allows taking into account the composite structure and reproduced the presence of a different number of composite layers along the thickness of the shell, the diversity of fibers on individual layers, in particular, the curvilinear orthotropy of mechanical properties was modeled. The procedure of multi-layer structure setting is presented, which provides for superimposition of layers of composite one on the other in places of joint, which ensures compliance of model with technological peculiarities. Static analysis of structural deformation calculation is carried out taking into account lifting force and air head force. The strength analysis was performed for each of the layers according to the criterion of maximum deformations. Key words: composite material, wind turbine blade, strength, finite-elemental analysis, orthotropy of characteristics.

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