【摘要】 为了研究对转桨扇的前后级桨距、级间距和桨扇直径等设计参数在不同进距比时对其性能的影响，采用NUMECA软件对一种高速对转桨扇的三维流场进行定常数值计算与分析。结果表明：前后级桨距的变化对对转桨扇的性能影响较明显；级间距的变化对对转桨扇的性能影响不大；相比于原尺寸桨扇，直径越小，对转桨扇整体的性能下降越明显。更多还原

【Abstract】 To study the effects of design parameters such as pitch angle, rotor-to-rotor spacing and diameter on its performance under different advance ratios, NUMECA software was used to calculate and analyze the three-dimensional steady flow field of a high-speed counter rotating propfan. The results show that the change of the pitch angles of the front and rear stages has a significant impact on the performance of the counter rotating propfan, while the change of the rotor-to-rotor spacing has little effect on the performance of the propfan, and the overall efficiency of the propfan decreases with the decrease of its diameter compared with the original size of the prop-fan.更多还原