中文摘要：

为了在一台高度装载的压缩机上发现血浆流动控制的分开的流动和机制的特征，串联，数字调查被进行。模拟方法被油流动可视化和压力分发验证。损失系数，优化模式，和拓扑学结构以及旋涡结构被分析。单个点的数字增加的结果表演和固体上的拓扑学结构的三个另外的单个点出现极大地随攻击，和全部的压力损失增加的角度的增加产生。在串联经过内有几个主要旋涡。马蹄铁旋涡的压力方面腿和经过旋涡在一个特定的区域以内共存，但是最后合并进后者。角落旋涡独立地存在并且不从马蹄铁的吸方面腿演变旋涡。一个光线的夫妇旋涡在落后于边的片附近存在并且在吸表面上成为逆流的主要部分。经过旋涡与集中的流交往旋涡和他们演变为在方向反面旋转到经过的一个大规模旋涡旋涡。单个点和分离线代表串联经过的基本分离特征。血浆使活动与当攻击的角度是 2 牦时，五和二个电极的布局直到 30.8% 和 26.7% 的不同使活动在低 freestream 速度，和平均沥青的全部的压力损失系数的相对减小有更好的效果吗？

英文摘要：

To discover the characteristic of separated flows and mechanism of plasma flow control on a highly loaded compressor cascade, numerical investigation is conducted. The simulation method is validated by oil flow visualization and pressure distribution. The loss coefficients, streamline patterns, and topology structure as well as vortex structure are analyzed. Results show that the numbers of singular points increase and three pairs of additional singular points of topology structure on solid surface generate with the increase of angle of attack, and the total pressure loss increases greatly. There are several principal vortices inside the cascade passage. The pressure side leg of horse-shoe vortex coexists within a specific region together with passage vortex, but finally merges into the latter. Corner vortex exists independently and does not evolve from the suction side leg of horse-shoe vortex. One pair of radial coupling-vortex exists near blade trailing edge and becomes the main part of backflow on the suction surface. Passage vortex interacts with the concentrated shedding vortex and they evolve into a large-scale vortex rotating in the direction opposite to passage vortex. The singular points and separation lines represent the basic separation feature of cascade passage. Plasma actuation has better effect at low freestream velocity, and the relative reductions of pitch-averaged total pressure loss coefficient with different actuation layouts of five and two pairs of electrodes are up to 30.8% and 26.7% while the angle of attack is 2~. Plasma actuation changes the local topology structure, but does not change the number relation of singular points. One pair of additional singular point of topology structure generates with plasma actuation and one more reattachment line appears, both of which break the separation line on the suction surface.