不同轴向引气位置对自循环机匣处理的影响研究
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摘要
针对转子失速时叶顶的具体流动情况,基于抽吸叶顶堵塞区低速流体的目的,设计了四种新的自循环机匣处理方案,探究其扩稳机理与常规自循环机匣处理的作用差异。数值计算选用Numeca Fine软件包的Euranus求解器,计算结果表明,通过抽吸叶顶堵塞区低速流体设计的自循环机匣处理结构,其达到的扩稳效果高于常规的自循环机匣处理。在优化设计中,当轴向引气位置位于转子叶顶堵塞区核心附近时,达到的扩稳效果最好,最大综合裕度改进量能达到15.00%。此外,本文还分析了自循环机匣处理后转子叶顶流场的差异,得出自循环机匣处理的扩稳机理在于把造成叶顶区堵塞流动的低速气流吸走,抑制了叶顶泄漏流动,改善了叶顶区的流动状况,以此来扩大转子的稳定工作范围。
For the specific flow condition of the tip of the rotor during stalling,based on the purpose of pumping the low velocity fluid in the blockage area of the tip,four sets of self-circulating casing treatment schemes are designed to explore the difference between the expansion mechanism and the conventional self-circulation casing treatment. The Euranus solver of the Numeca Fine software package is used in the numerical calculation. The calculation results show that the self-circulating casing treatment structure designed by pumping the low-speed fluid in the plugging area of the tip is more stable than the conventional self-circulating casing treatment. In the optimized design,when the axial bleed air position is located at the core of the rotor tip blockage area,the achieved stabilization effect is best,and the maximum comprehensive margin improvement can reach15.00%. In addition,the paper also analyzes the difference of the top flow field after the self-circulating casing treatment,and concludes that the expansion mechanism of the self-circulating casing treatment is to suck away the low-speed airflow causing the blockage flow in the tip area,suppress the leakage flow at the tip,and improve the flow condition in the tip area,which is used to expand the stable working range of the rotor.
For the specific flow condition of the tip of the rotor during stalling,based on the purpose of pumping the low velocity fluid in the blockage area of the tip,four sets of self-circulating casing treatment schemes are designed to explore the difference between the expansion mechanism and the conventional self-circulation casing treatment. The Euranus solver of the Numeca Fine software package is used in the numerical calculation. The calculation results show that the self-circulating casing treatment structure designed by pumping the low-speed fluid in the plugging area of the tip is more stable than the conventional self-circulating casing treatment. In the optimized design,when the axial bleed air position is located at the core of the rotor tip blockage area,the achieved stabilization effect is best,and the maximum comprehensive margin improvement can reach15.00%. In addition,the paper also analyzes the difference of the top flow field after the self-circulating casing treatment,and concludes that the expansion mechanism of the self-circulating casing treatment is to suck away the low-speed airflow causing the blockage flow in the tip area,suppress the leakage flow at the tip,and improve the flow condition in the tip area,which is used to expand the stable working range of the rotor.
引文
[1]Smith L H,Griffin R G Jr.Experimental Evaluation of Outer Case Blowing or Bleeding of a Single Stage Axial Flow Compressor,Part I:Design of Rotor Blowing and Bleeding Configurations[R].NASA-CR-54587,1966.
[2]Smith L H,Koch C C Jr.Experimental Evaluation of Outer Case Blowing or Bleeding of a Single Stage Axial Flow Compressor,Part VI:Final Report[R].NASA-CR-54592,1970.
[3]Freeman C,Wilson A G,Day I J,et al.Experiments in Active Control of Stall on an Aeroengine Gas Turbine[J].Journal of Turbomachinery,1998,120(4):637-647.
[4]Hathaway Michael D.Self-Recirculating Casing Treatment Concept for Enhanced Compressor Performance[R].ASME GT-2002-30368.
[5]Yang H,Nuernberger D,Nicke E,et al.Numerical Investigation of Casing Treatment Mechanisms with a Conservative Mixed-Cell Approach[R].ASME GT-2003-38483.
[6]Strazisar A J,Bright M M,Thorp S,et al.Compressor Stall Control Through Endwall Recirculation[R].ASMEGT-2004-54295.
[7]Weichert S,Day I,Freeman C.Self-Regulating Casing Treatment for Axial Compressor Stability Enhancement[R].ASME GT-2011-46042.
[8]张皓光,楚武利,吴艳辉,等.压气机端壁自适应流通延迟失速的数值分析[J].推进技术,2009,30(2):202-208.(ZHANG Hao-guang,CHU Wu-li,WUYan-hui,et al.Numerical Investigation of the Flow Mechanisms of Compressor Stall Delay Through Endwall Self Recirculation[J].Journal of Propulsion Technology,2010,30(2):202-208.)
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[10]Wang W,Chu W L,Zhang H G,et al.Experimental Study of Self-Recirculating Casing Treatment in a Subsonic Axial Compressor[J].Journal of Power and Energy,2016,230(8):805-818.
[11]李继超,刘乐,张宏伟,等.低速单级轴流压气机自引气扩稳实验[J].航空动力学报,2012,27(11):2577-2584.
[12]Yang Chengwu,Zhao Shengfeng,Lu Xingen,et al.Investigation on Multiple Cylindrical Holes Casing Treatment for Transonic Axial Compressor Stability Enhancement[J].Journal of Thermal Science,2014,23(4):346-353.
[13]张皓光,安康,谭峰,等.自循环机匣处理轴向引气位置影响扩稳能力的机理[J].航空动力学报,2017,32(4):983-989.
[14]吴艳辉,杨国伟,王博,等.轴向引气位置对自循环机匣扩稳的能力的影响机制研究[C].大连:中国航天空天动力联合会议,2017.
[15]Reid M R D.Design and Overall Performance of Four Highly-Loaded,High-Speed Inlet Stages for an Advanced,High-Pressure-Ratio Core Compressor[R].NASA-TP-1337,1978.
[16]Celestina M L,Suder K L.Experiment and Computational Investigation of the Tip Cleaeance Flow in a Transonic Axial Compressor Rotor[R].ASME Journal of Turbomachinery,1997,118:218-229.
[17]张燕峰.高载荷压气机端壁流动及其控制策略研究[D].西安:西北工业大学,2010.
[18]Denton J D.Lessons from Rotor 37[J].Journal of Thermal Science,1996,6(1).
[19]Suder K L,Celestina M L.Experiment Investigation of the Flow Field in a Transonic,Axial Flow Compressor with Respect to the Development of Blockage and Loss[R].NASA-TM-107310,1996.
[20]王维.轴流压气机叶顶喷气和自循环机匣处理的设计规律及流动机理研究[D].西安:西北工业大学,2016.
[2]Smith L H,Koch C C Jr.Experimental Evaluation of Outer Case Blowing or Bleeding of a Single Stage Axial Flow Compressor,Part VI:Final Report[R].NASA-CR-54592,1970.
[3]Freeman C,Wilson A G,Day I J,et al.Experiments in Active Control of Stall on an Aeroengine Gas Turbine[J].Journal of Turbomachinery,1998,120(4):637-647.
[4]Hathaway Michael D.Self-Recirculating Casing Treatment Concept for Enhanced Compressor Performance[R].ASME GT-2002-30368.
[5]Yang H,Nuernberger D,Nicke E,et al.Numerical Investigation of Casing Treatment Mechanisms with a Conservative Mixed-Cell Approach[R].ASME GT-2003-38483.
[6]Strazisar A J,Bright M M,Thorp S,et al.Compressor Stall Control Through Endwall Recirculation[R].ASMEGT-2004-54295.
[7]Weichert S,Day I,Freeman C.Self-Regulating Casing Treatment for Axial Compressor Stability Enhancement[R].ASME GT-2011-46042.
[8]张皓光,楚武利,吴艳辉,等.压气机端壁自适应流通延迟失速的数值分析[J].推进技术,2009,30(2):202-208.(ZHANG Hao-guang,CHU Wu-li,WUYan-hui,et al.Numerical Investigation of the Flow Mechanisms of Compressor Stall Delay Through Endwall Self Recirculation[J].Journal of Propulsion Technology,2010,30(2):202-208.)
[9]张皓光,楚武利,吴艳辉,等.自适应流通机匣处理改善压气机性能的机理[J].推进技术,2010,31(3):301-308.(ZHANG Hao-guang,CHU Wu-li,WUYan-hui,et al.Flow Mechanisms of Improving Compressor Performance Through Self Recirculation Casing Treatment[J].Journal of Propulsion Technology,2010,31(3):301-308.)
[10]Wang W,Chu W L,Zhang H G,et al.Experimental Study of Self-Recirculating Casing Treatment in a Subsonic Axial Compressor[J].Journal of Power and Energy,2016,230(8):805-818.
[11]李继超,刘乐,张宏伟,等.低速单级轴流压气机自引气扩稳实验[J].航空动力学报,2012,27(11):2577-2584.
[12]Yang Chengwu,Zhao Shengfeng,Lu Xingen,et al.Investigation on Multiple Cylindrical Holes Casing Treatment for Transonic Axial Compressor Stability Enhancement[J].Journal of Thermal Science,2014,23(4):346-353.
[13]张皓光,安康,谭峰,等.自循环机匣处理轴向引气位置影响扩稳能力的机理[J].航空动力学报,2017,32(4):983-989.
[14]吴艳辉,杨国伟,王博,等.轴向引气位置对自循环机匣扩稳的能力的影响机制研究[C].大连:中国航天空天动力联合会议,2017.
[15]Reid M R D.Design and Overall Performance of Four Highly-Loaded,High-Speed Inlet Stages for an Advanced,High-Pressure-Ratio Core Compressor[R].NASA-TP-1337,1978.
[16]Celestina M L,Suder K L.Experiment and Computational Investigation of the Tip Cleaeance Flow in a Transonic Axial Compressor Rotor[R].ASME Journal of Turbomachinery,1997,118:218-229.
[17]张燕峰.高载荷压气机端壁流动及其控制策略研究[D].西安:西北工业大学,2010.
[18]Denton J D.Lessons from Rotor 37[J].Journal of Thermal Science,1996,6(1).
[19]Suder K L,Celestina M L.Experiment Investigation of the Flow Field in a Transonic,Axial Flow Compressor with Respect to the Development of Blockage and Loss[R].NASA-TM-107310,1996.
[20]王维.轴流压气机叶顶喷气和自循环机匣处理的设计规律及流动机理研究[D].西安:西北工业大学,2016.