The Tjaereborg Wind Turbine Analysis And Calculation In Yaw Condition Based On Bladed And Numeca

Complex and volatile external conditions tend to make wind turbines in a terrible environment for a long time. The using of new technologies of the blade such as bend, twist, sweep, flexible and self_adaptive have been promoting the efficiency of blade design, which led to the complex dynamic response and flow solid coupling problem. The assessment of wake effects in the process of the development of large-scale wind farm is also a growing concern. The advanced CFD methods would help to improve assessment accuracy.According to the experimental results of the Danish Tj(?)reborg 2MW wind turbine which has constant speed and pitch contral blade. The horizontal axis wind turbine aerodynamic performance and dynamic response were analyzed. The joint checking method of the wind turbine blade aerodynamic and structural based on GH Bladed and Numeca was proposed. The aerodynamic characteristics of the horizontal axis wind turbine at a fixed yaw state has been systematicly analysised. The flow of the wind rotor at a fixed yaw statea has been detailed analysised.The aerodynamic performance and modal of the Tj(?)reborg wind turbine blades has been analysised. To confirm the reliability of the model the computing air power and model of the blade have been compared with the measured ones. For the futher CFD Reynolds calculations and analysis of the blade the typical operating conditions mast be choosen,which based on the results of the calculationsand analysis of the Bladed. The details of three-dimensional flow field of the wind rotor and the wake structure can be study. Then the inadequacies of the multi-MW class wind turbine in early time has been obtained.Based on experiment Tj(?)reborg SV311 using GH Bladed at uniform, wind shear, yaw and wind shear combine with yaw four inflow conditions. The aerodynamic performance and dynamic of the blade have been analysised.The computing results of the electrical power and load have been compared with the measurements. And the blade deformations also has been compared. Numeca has been used for the three-dimensional unsteady CFD simulations of the wind disk in a fixed yaw angle. The details of three-dimensional flow field of the wind disk in the fixed yaw angle and the wake structure have been study.The aerodynamic properties of the blade in the fixed yaw condition has been assessed. Finally, the conclusion of the yaw angle on the horizontal axis wind turbine power loss and the angle of attack changing of different blade section have been made.