The results indicated that the generation of trailing - vortex of downstream adjacent vanes could be restrained effectively by upstream wake when the passing frequency and the amplitude of wake defect satisfy some conditions , associated with a significant enhancement of time - averaged aerodynamic performances : loss coefficient reducing 40 . 2 % and the ratio of loading coefficient and loss coefficient increasing 93 % 研究表明：满足一定通过频率和亏损幅值条件的尾迹能够有效抑制下游相邻叶排尾缘涡的生成，达到控制或是推迟附面层非定常分离的目的，从而使得流场时均性能大幅度的提高，损失系数降低了40 . 2 % ，功损比增加93 % 。
