Comparative study on the wake deflection behind yawed wind turbine models

Wake Conference 2017

Schottler, Jannik^1 ; Mühle, Franz^2 ; Bartl, Jan^3 ; Peinke, Joachim^1 ; Adaramola, Muyiwa S.^2 ; Sætran, Lars^3 ; Hölling, Michael^1

ForWind, University of Oldenburg, Institute of Physics, Oldenburg, Germany^1

Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway^2

Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway^3

关键词: Available power;    Comparative studies;    Experimental and numerical studies;    Rotor design;    Rotor diameter;    Turbine models;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/854/1/012032/pdf
DOI  :  10.1088/1742-6596/854/1/012032

来源: IOP

【 摘 要 】

In this wind tunnel campaign, detailed wake measurements behind two different model wind turbines in yawed conditions were performed. The wake deflections were quantified by estimating the rotor-averaged available power within the wake. By using two different model wind turbines, the influence of the rotor design and turbine geometry on the wake deflection caused by a yaw misalignment of 30° could be judged. It was found that the wake deflections three rotor diameters downstream were equal while at six rotor diameters downstream insignificant differences were observed. The results compare well with previous experimental and numerical studies.