Objective: Under the offshore wind conditions in China obtained in WP1, new aerodynamically optimal airfoils and rotors will be designed. The current of the art in aerodynamic rotor design is that wind turbines are designed at a moderate tip speed to limit noise emission. As offshore sites are relative far from populated areas, the offshore turbines can be designed and operated at the optimal tip speed to reach the optimal power performance. To make such design, it requires the further development of design and prediction tools that are capable of predicting the aerodynamic performance of wind turbine rotors under such conditions. Moreover, to reduce noise generated from wind turbines, the airfoil and rotor design will be performed together with the noise model previously developed. In this WP we will select a specific offshore landscape from China to investigate the aerodynamic optimization of wind turbine rotors.
Expected results: New rotor aerodynamic design tools, new optimal airfoils and new optimal rotors.
This WP including following tasks:
- Task 2.1: Designing high speed low noise airfoils by considering the compressibility effect.
- Task 2.2: Developing a numerical tool suitable for designing rotors to run optimally at high tip speed, by considering the tip loss effects, the dynamic inflow effects and the yaw effects at high tip speed.
- Task 2.3: Extending the in-house CFD code EllipSys by taking into account the compressibility effects.
- Task 2.4: Designing an experimental rotor model for WP5.
- Task 2.5: Designing an optimal rotor under offshore wind conditions in China.
- Task 2.6: Making comparison and verification with experimental data obtained in WP5.
After completion of this WP, there will be:
- Milestone 2: Design of the experimental model.
- Milestone 3: Design of the optimal model under offshore wind conditions in China.
WP2 will be carried out by DTU Wind Energy-FM with collaboration of CQU.