论文部分内容阅读
对具有弯曲动叶的跨音轴流压气机性能的数值研究表明,反弯曲动叶中通道激波沿径向倾斜角度最大,在顶部移向下游,在中部移向前缘,提高了失速裕度,但也增加了中部损失,反弯曲动叶级效率最低。正弯曲动叶中通道激波在顶部前移,失速裕度下降,通道激波近似为径向,负荷沿叶高分布均匀,气动效率最高。通道激波位置合理分布是弯曲动叶改型设计成功的关键。
A numerical study on the performance of a transonic axial flow compressor with curved rotor blades shows that the channel shock waves in the anti-bending rotor blade have the largest inclination angle in the radial direction, move from the top to the downstream, move to the leading edge in the middle, and increase the stall margin Degrees, but also increased the central loss, the lowest bending buckle bucket level. The shock wave in the forward curved bucket moves forward at the top, the stall margin decreases, the shock wave in the channel is approximately radial, and the load is evenly distributed along the leaf height with the highest aerodynamic efficiency. Reasonable distribution of channel shock wave position is the key to the successful design of modified curved buckets.