25 M Hat als Testcase voor de in Nederland Gangbare Aerodynamische Rekenmodellen voor Snellopers (25 M Horizontal-Axis Turbine as a Test Case for Standard Dutch Aerodynamic Calculation Methods for High-Speed Rotors)

摘要

Operational methods for the calculation of the aerodynamic performances of horizontal-axis wind turbines (HAT) were tested on a reference rotor, namely a 25 m HAT. The different theoretical models are described. The rotor specifications of the reference case are given. The results of the different calculations are compared, and the predicted values are compared with measured data. A good prediction of the axial force and power is not possible with the present methods. In contrast with the expectations, the discrepancy between measurements and calculations, as well as among the different calculations, does not decrease with increasing pitch angle. The differences between measurements and calculations are not systematic.