提高风力发电的经济性，一条重要的技术路径就是增加叶片的长度，从而增大叶轮的捕风面积，增加单机的出功能力，但同时叶片的气动载荷也变得更大、更复杂。为了更加经济可靠地利用风能资源，围绕叶片的造型、结构、控制等，人们提出了各种方法，后掠叶片就是其中一个引人注目的概念。后掠叶片被证明可以有效降低叶片的气动载荷，同时保持与直叶片相同的气动效率，但是其气动特性还没有充分得到研究和阐释。本文用CFD正交试验的方法分析了影响后掠叶片气动性能的主次因素，以及因素水平变化对叶片气动性能的影响趋势。
One of the important paths to gain more economical wind power generation is to lengthen the blades to exspand wind absorption area, while the aerodynamic load gets larger and more complex. Therefore, different ways about blade shape, structure, control etc. appeared, including a shining concept that was called aft-swept curved blade （ASC blade）. The ASC blade has been confirmed to be aerodynamic load reduction effective and as aerodynamic effective as straight one, however, its aerodynamic properties has not been studied clear enough. Therefore in this paper CFD method and orthogonal experiment was introduced to analysis straight and ASC blades, some aerodynamic properties were analysed, the trend of aerodynamic performance with the aft-swept geometry parameters vary was found.
参考文献
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%