Low speed axial compressor stall margin improvement by unsteady plasma actuation
Low speed axial compressor stall margin improvement by unsteady plasma actuation
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DOI：
10.1007/s11630-014-0684-8
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发表时间：
2014-03
影响因子：
2.5
通讯作者：
Gang Li;Yanji Xu;Ling Yang;W. Du;Junqiang Zhu;Chaoqun Nie
中科院分区：
文献类型：
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作者：
Gang Li;Yanji Xu;Ling Yang;W. Du;Junqiang Zhu;Chaoqun Nie
本研究探讨使用单一的介质阻挡放电（SDBD）激励器激励叶尖泄漏流，以抑制旋转失速的开始，并扩大稳定的工作范围的低速轴流压气机与单转子。由等离子体激励器诱导的射流增加了尖端区域的流动的动量，并对尖端间隙流动具有显着的影响。在一台低速单转子轴流压气机上进行了实验研究。在转子入口和出口处测量静压。计算了流量系数和压力上升系数。然后，得到的特征线，以显示压缩机的整体性能。采用18 kV、60 W的非稳态等离子体激励，在转子转速1500 r/min ~ 2400 r/min范围内实现了压气机稳定范围的改善。
This research investigates the use of single dielectric barrier discharge (SDBD) actuators for energizing the tip leakage flow to suppress rotating stall inception and extend the stable operating range of a low speed axial compressor with a single rotor. The jet induced by the plasma actuator adds momentum to the flow in the tip region and has a significant impact on the tip-gap flow. Experiments are carried out on a low speed axial compressor with a single rotor. The static pressure is measured at both the rotor inlet and outlet. The flow coefficient and pressure rise coefficient are calculated. Then the characteristic line is acquired to show the overall performance of the compressor. With unsteady plasma actuation of 18kV and 60W the compressor stability range improvement is realized at rotor speed of 1500 r/min — 2400 r/min.