轴流压缩机中的时序(Clocking)效应已通过实验和数值模拟被证实存在,而离心压缩机中时序效应的研究还很少见报道.本文通过实验,研究了静叶间时序效应对压缩机性能的影响,并采用热膜传感器,测量了叶轮出口和扩压器进口流场.实验表明,Clocking效应对压缩机效率影响明显,影响幅值超过2%,最大达到3.6%,对压比也有相应的影响.不同Clocking位置,叶轮出口切向集平均速度改变达3.3%,径向达16.5%;对扩压器进口切向集平均速度的影响超过2%,径向达4%,且扩压器进口流动角改变1.5°.
参考文献
| [1] | Dorney D J;Shurma OP;Gundy-Burlet KL .Physics of Airfoil Clocking in a High Speed Axial Compressor[J].International Journal of Turbo and Jet Engines,1998,15(04):259-270. |
| [2] | Mailach Ronald;Vogeler Konrad .Rotor-Stator Interactions in a Four-Stage Low-Speed Axial Compressor-Part Ⅰ:Unsteady Profile Pressures and the Effect of Clocking[J].Journal of Turbomachinery,Transactions of the ASME,2004,126(04):507-518. |
| [3] | Ronald Mailach;Lutz Muller;Konrad Vogeler .Rotor-Stator Interactions in a Four-Stage Low-Speed Axial Compressor - Part II: Unsteady Aerodynamic Forces of Rotor and Stator Blades[J].Journal of turbomachinery,2004(4):519-526. |
| [4] | S. T. Hsu;A. M. Wo .Reduction of unsteady blade loading by beneficial use of vortical and potential disturbances in an axial compressor with rotor clocking[J].Journal of turbomachinery,1998(4):705-713. |
| [5] | V E Saren;N M Savin .Experimental and Numerical Investigations of Airfoil Clocking and Inter-Blade-Row Gap Effects on Axial Compressor Performance[J].International Journal of Turbo and Jet Engines,1998,15(04):232-252. |
| [6] | 席光,刘磊,姜华,宫武旗,王志恒.离心压缩机级内静叶时序效应的数值研究[J].工程热物理学报,2008(09):1495-1498. |
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