| It is focused on the study of Horizontal-Axis wind turbine in this paper. Glauert theory and complex method were employed to optimize the design of wind turbine blades of 600kW with the objective of maximal annual power output. To improve the aerodynamic performance of wind turbine, a new modified airfoil with a blunt trailing edge was formed based on NACA4412 airfoil, moreover the flow field of both airfoils was calculated applying FLUENT software. Wind turbine blades were designed and optimized accounting of the original and modified airfoils, and the outputs of both wind turbines were discussed. To study the effect of turbine wake on aerodynamic performance of wind turbine, 3D flow-fields were numerically simulated around the blade of single wind turbine of 600kW and two Horizontal-Axis wind turbines with the distance of 7 times blade diameter (7D) in different inlet wind speeds. The characteristic of wake flow-field and the output of backward wind turbine influenced by upriver wind turbine wake in the conditions of different wind speeds were discussed in this paper.
|
PDF Full Text Request