偏航和风切变下风力机气动特性的研究

RESEARCH ON WIND TURBINE AERODYNAMIC CHARACTERISTICS UNDER YAW AND SHEAR

采用基于滑移网格技术的三维非定常CFD方法,以TJ?REBORG和NREL Phase VI风力机为例,数值模拟轴向均匀来流条件下风力机气动性能的变化规律并与实验值进行比较,确定该方法的可靠性。在此基础上探讨风切变以及偏航条件下水平轴风力机风轮的气动特性,分析其影响规律、叶片旋转平面附近流场中的流动细节及尾迹的变化。

By using the TJ/EREBORG and NREL Phase VI wind turbine as the object of study, the variation law of the aerodynamic characteristics of the axial flow wind turbine was studied. A sliding grid technique of three-dimensional unsteady CFD method was applied in the process of numerical simulation. The comparison between the model and the experimental results for studying the reliability of the model was obtained. For further study on the aerodynamic characteristic of the horizontal axial wind turbine under the circumstances of wind shear and different yaw angle. Finally, the effect rule and the flow detail around the blade rotate surface and the variation of the wake were analyzed.