中文摘要：

Non-axisymmetric 弄醒影响实验为低速度在最好的激动频率以后被执行轴的压缩机被 axisymmetric 发现了弄醒影响实验。当数字和入口指南翼(IGV ) 的环绕的分发是逻辑的时， IGV 能施加有益的不稳定的激动的 non-axisymmetric 的 wakes 在他们的下游的转子流动领域上完成并且改进压缩机鈥檚 表演。在现在的纸，四 non-axisymmetric 弄醒计划被发现比 axisymmetric 更好工作的影响弄醒影响计划。与基础计划相比，最好的 non-axisymmetric 计划增加了压缩机鈥檚 山峰效率，和全部的压力上升 1.1 和 2% ，并且在 4.4% 提高了货摊边缘。non-axisymmetric 计划比 axisymmetric 计划作为从 IGV 产生的不稳定的激动信号的变化被解释的更好可行的主要原因醒来。除高周波的部件以外， non-axisymmetric 计划产生了一个有益的低频率的方形波浪的激动信号和另外的第二等的频率部件。与 axisymmetric 计划相比，激动弄醒从 non-axisymmetric 计划产生的多频率更容易得到与象清理旋涡，经过旋涡和流的旋涡那样的复杂旋涡联合关系。关键词轴的压缩机 - Non-axisymmetric - 醒来 - 联合中国(50476003 ) 的国家自然科学基础和 BUAA 的革新基础为博士支持的工程毕业。

英文摘要：

Non-axisymmetric wake impact experiments were carried out after the best exciting frequency for a low speed axial compressor had been found by axisymmetric wake impact experiments. When the number and circumferential distribution of inlet guide vanes （IGV） are logical, the wakes of non-axisymmetric IGVs can exert beneficial unsteady exciting effect on their downstream rotor flow fields and improve the compressor＇s performance. In the present paper, four non-axisymmetric wake impact plans were found working better than the axisymmetric wake impact plan. Compared with the base plan, the best non-axisymmetric plan increased the compressor＇s peak efficiency, and the total pressure rise by 1.1 and 2%, and enhanced the stall margin by 4.4%. The main reason why non-axisymmetric plans worked better than the axisymmetric plan was explained as the change of the unsteady exciting signal arising from IGV wakes. Besides the high-frequency components, the nonaxisymmetric plan generated a beneficial low-frequency square-wave exciting signal and other secondary frequency components. Compared with the axisymmetric plan, multifrequency exciting wakes arising from the non-axisymmetric plans are easier to get coupling relation with complex vortices such as clearance vortices, passage vortices and shedding vortices.