Integrated aero-structural optimization design of pre-bend wind turbine blades

2016 ◽  
Vol 30 (11) ◽  
pp. 5103-5113 ◽  
Author(s):  
Xiaofeng Guo ◽  
Xiaoli Fu ◽  
Huichao Shang ◽  
Jin Chen
Keyword(s):  
Structural Optimization ◽  
Wind Turbine ◽  
Optimization Design ◽  
Turbine Blades ◽  
Wind Turbine Blades

Optimization Design of Airfoil Propellers of Modified NACA 4415 Using Computational Fluids Dynamics

2013 ◽  
Vol 789 ◽  
pp. 403-407
Author(s):  
Sudarsono ◽  
Purwanto ◽  
Johny Wahyuadi
Keyword(s):  
Reynolds Number ◽  
Wind Energy ◽  
Wind Turbine ◽  
Optimization Design ◽  
Numerical Study ◽  
Turbine Blades ◽  
Energy Prices ◽  
Wind Turbine Blades ◽  
Pricing Policy ◽  
Computational Fluids Dynamics

Utilization of wind power in Indonesia is less attractive compared with utilization of conventional fuel. This is because the price of wind energy is not competitive when compared with fossil energy prices, and as a result of the implementation of energy pricing policy through subsidies. Before designing the Wind Energy Conversion System, simulation of computational fluid dynamics needs to be done in order for reducing designing time and cost. In this research, modeling and simulation work has been done to figure out the optimum aerodynamics coefficient of wind turbine blades at different Reynolds number. This blade is a modification of standard airfoil of NACA 4415. The aerodynamics coefficient of modify and standard airfoil is then compared. FLUENT software and Spalart-Allmaras Turbulent Model are used in this work. Based on the comparison of the coefficient of aerodynamic, modification NACA 4415 airfoil has better performance at Reynolds number of 4.1 x 104 to 2.5 x 105. The experiment results also showed that based on a numerical study of the modification NACA 4415 airfoil can be used as a basis for the establishment of wind turbine blades.

Dynamic Analysis for the Wind Turbine Generator Blades

2010 ◽  
Vol 34-35 ◽  
pp. 1697-1701
Author(s):  
Wen Lei Sun ◽  
Hai Ping Chen ◽  
An Wu
Keyword(s):  
Wind Turbine ◽  
Optimization Design ◽  
Mechanical Performance ◽  
Simulation Analysis ◽  
Line Graph ◽  
Turbine Blades ◽  
Distribution Patterns ◽  
Wind Turbine Blades ◽  
Horizontal Axis Wind Turbine ◽  
Coupling Force

This paper carried out the effective dynamic simulation analysis for the 750KW Horizontal Axis Wind Turbine blades in the wind, gravity and centrifugal force coupling. Based on the selected turbulence model, and considering the natural flow of air as a viscous incompressible steady flow, and the fan blades as the flexible body, simulated the flowing line graph of wind wheel surface, and the overall mechanical performance data at any moment. After effective analysis of the Coupling force, obtained the deformation distribution patterns and rules, which provide much reference to the further failure analysis of fan blade and structural optimization design.

Optimization Design of Wind Turbine Blades Based on BLADED

2012 ◽  
Vol 538-541 ◽  
pp. 2700-2704
Author(s):  
Jia Hong Zheng ◽  
Hao Ran Ma
Keyword(s):  
Wind Turbine ◽  
Optimization Design ◽  
Twist Angle ◽  
Turbine Blades ◽  
Average Power ◽  
Maximum Power ◽  
Power Coefficient ◽  
Wind Turbine Blades ◽  
Minimum Power ◽  
Generating Capacity

The optimization of wind turbine blades can increase the generator power and annual output of electricity. Illustrated by the case of 2MW wind turbine, optimizing the blade chord and twist angle by POS algorithm. Modeling by BLADED, analysis the change of lift and drag coefficients, the power coefficient, maximum power of wind turbine, minimum power of wind turbine, wind turbine generating capacity before and after optimization. The results show: the aerodynamic efficiency of optimized blade increased by 4.833 than that before optimization. In the wind speed of 12 m/s (that is lower and normal speed), the average power coefficient is improved by 0.05. The minimum power of the wind turbine increased by 4% -15% .The maximum power of the wind turbine increased by 3% -9%. And the annual production of power increased by 0.25%.

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