采用试验和数值模拟的方法研究了梯状间隙结构对轴流压气机转子性能以及内部流动的影响,在某单级轴流压气机试验台上,在5059 r/min和8130 r/min两个换算转速下分别对三种不同的机匣结构进行了详细的试验测试,结果表明:与具有设计间隙的实壁机匣结构相比,两个转速下梯状间隙结构的引入能够在扩大压气机的稳定工作裕度的同时使得压气机所有流量工况下的压比和效率均有一定程度的改善;对具有梯状间隙的压气机转子内部流场进行了详细的数值模拟,揭示阶梯状间隙结构内部流动机理.
参考文献
[1] | Crook A J;Greitzer E M;Tan C S et al.Numerical Simulation of Compressor Endwall and Casing Treatment Flow Phenomena[J].SAME J Turbomachinery,1993,115:505-512. |
[2] | Rabe D C;Hah C .Application of Casing Circumferential Grooves for Improved Stall Margin in a Transonic Axial Compressor[R].ASME GT-2002-30641,2002. |
[3] | D. W. Thompson;P. I. King;D. C. Rabe .Experimental investigation of stepped tip gap effects on the performance of a transonic axial-flow compressor rotor[J].Journal of turbomachinery,1998(3):477-486. |
[4] | Numeca's Flow Integrated Environment for Turbomachinery and Internal Flows. User Manual[M].,2003 |
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