论文部分内容阅读
风能是我国发展最快的可再生能源.萨沃纽斯(Savonius)风力机是一种典型的垂直轴式风力机,具有结构简单、自启动性能好等优点,但是其能量转换效率较低,最佳叶尖速比在1左右,最佳风能利用率可达到20%。本文对不同尖速比下的Savonius型风力机的气动性能进行了模拟研究,并从涡的观点比较和分析了Savonius型风力机的性能规律,结果表明流场中的涡结构对叶片的作用可显著影响Savonius风力机的性能.
Wind energy is the fastest growing renewable energy in China.V Savonius wind turbine is a typical vertical axis wind turbine with the advantages of simple structure and good self-starting performance, but its energy conversion efficiency is low, The best tip speed ratio is about 1, the best wind energy utilization rate can reach 20%. In this paper, the aerodynamic performance of Savonius-type wind turbine with different speed-ratio is simulated and the performance of the Savonius-type wind turbine is compared and analyzed from the vortex point of view. The results show that the vortex structure in the flow field can affect the blade Significantly affects the performance of the Savonius wind turbine.