【摘 要】
：
分别采用BEM理论和基于嵌套网格技术的CFD方法,以两叶片NREL Phase VI风力机为研究对象,对不同风速下的风力机性能预测进行研究。将两种方法得到的预测结果与实验结果进行对
【机 构】
：
西北工业大学流体力学系西北工业大学翼型叶栅国家重点实验室,
论文部分内容阅读
分别采用BEM理论和基于嵌套网格技术的CFD方法,以两叶片NREL Phase VI风力机为研究对象,对不同风速下的风力机性能预测进行研究。将两种方法得到的预测结果与实验结果进行对比。结果显示,BEM方法在全风速范围内与实验值吻合良好,嵌套网格技术方法在低风速区能准确地对风力机性能进行预测,并能显示出叶片绕流流场的流动细节,但在高风速区对风力机的性能预测有较大偏差。
The BEM theory and CFD method based on nested grid technique are respectively used to study the prediction of wind turbine performance under different wind speeds using the two-blade NREL Phase VI wind turbine as the research object. The predicted results obtained by the two methods are compared with the experimental results. The results show that the BEM method is in good agreement with the experimental data in the whole wind speed range. The nested grid technique can accurately predict the wind turbine performance in the low wind speed area and show the flow details of the flow field around the blade In high wind speed wind turbine performance prediction has a larger deviation.
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