对转压气机转速比变化对稳定边界的影响

推进技术 ›› 2012, Vol. 33 ›› Issue (6): 881-887.

对转压气机转速比变化对稳定边界的影响

高丽敏,李晓军,冯旭栋,谢建

西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072

发布日期:2021-08-15
作者简介:高丽敏(1973—),女,博士,教授,研究领域为叶轮机械流动理论与实验。E-mail:gaolm@nwpu.edu.cn

Effects of Rotational Speed Ratio on Stability Boundary of Contra-Rotating Compressor

School of Power and Energy, Northwestern Polytechnical University, Xi ’an 710072, China;School of Power and Energy, Northwestern Polytechnical University, Xi ’an 710072, China;School of Power and Energy, Northwestern Polytechnical University, Xi ’an 710072, China;School of Power and Energy, Northwestern Polytechnical University, Xi ’an 710072, China

Published:2021-08-15

摘要/Abstract

摘要： 以实验室对转压气机为研究对象,采用数值模拟方法研究了不同转速比对压气机稳定性的影响。着重分析了转速比对压气机失速边界和堵塞边界的影响规律,并对不同转速比下各转子的稳定性进行了初步的研究。结果表明:(1)当转速比R2:R1>1.0时,转速比增大会导致失速边界和堵塞边界均向小流量方向偏移。(2)当转速比R2:R1<1.0时,随转速比增大失速边界变化不大,但堵塞边界向大流量方向偏移。(3) 转子1转速变化对转子2气动性能具有很大的影响,而转子2转速变化却对转子1性能影响不大。(4)在不同转速比下,导致该对转压气机失稳的主要因素也不同。

关键词: 对转压气机;数值模拟;转速比;稳定边界

Abstract: The effects of rotational speed ratio on stability of two-stage contra-rotating compressors with the numeral method were studied. The effect law of rotational speed ratio on stall boundary and block boundary was analyzed. The stability of rotors in different rotational speed ratio was studied. The results show that:(1) when the rotational speed ratio R2:R1>1.0, the stall boundary and block boundary will deflect to low flow direction with increasing the rotational speed ratio. (2) When the rotational speed ratio R2:R1<1.0, the stall boundary will not change, but the block boundary will deflect to low flow direction with increasing the rotational speed ratio. (3) The variation of rotational speed of the first rotor has strong effect on the performance of the second rotor. But the speed variation of the second rotor has little effect on the performance of the first rotor. (4)The factors resulting in destabilization of contra-rotating compressor will differ with different rotational speed ratio.

Key words: Contra-rotating compressor; Numerical simulation; Rotational speed ratio; Stability boundary

高丽敏,李晓军,冯旭栋,谢建. 对转压气机转速比变化对稳定边界的影响[J]. 推进技术, 2012, 33(6): 881-887.

参考文献

[1] Sharma P B,Jain Y P, Pundir D S.A Study of Some Factors Affecting the Performance of a Contra-Rotating Axial Compressor Stage[J].Proc.Instn.Mech.Engrs,7,2(A1):15-21.
[2] Sharma P B,Pundir D S.A Study of Flow Structure in a Contra-Rotating Axial Compressor Stage[R]. ISABE 89-7023.
[3] Pundhir D S,Sharma P B.A Study of Aerodynamic Performance of a Contra-Rotating Axial Compressor Stage[J].Defence Science Journal, 2,2(3):191-199.
[4] Sharma, Jain Y P.Stall Behavior of a Contra-Rotating Axial Compressor Stages[R].ISABE 85-7087.
[5] Sharma P B.Surge and Stall Studies in an Axial Compressor[R].Annual Project Report 1987-88.
[6] 梁锡智, 吴海, 赵真.轴流对旋风机的设计和试验研究[J].煤炭学报,9,4(1):94-97.
[7] 王军, 宋文艳.对旋风机两级功率特性的对比研究[J].流体机械,0,8(11):5-7.
[8] 王军, 王建峰, 唐狄毅.对转式轴流风机内流的数值模拟[J].西北工业大学报,0,8(4):583-586.
[9] 朱巍, 李秋实, 范洪涛, 等.对旋风机对旋叶轮级间流场的试验研究[J].航空动力学报, 1,6(2):158-162.
[10] 王掩刚, 刘波, 陈云永, 等.双级对转压气机流场分析研究[J].西北工业大学学报,6,4(1):97-101.
[11] 刘波, 陈云永, 项效镕, 等.对转压气机数值模拟及试验研究[J].推进技术,8,9(4):454-457.(LIU Bo,CHEN Yun-yong,XIANG Xiao-yong,et al.Experimental and Numerical Investigation of Dual Stage Counter-Rotating Compressor[J].Journal of Propulsion Technology,8,9(4).)
[12] 王掩刚, 贾瑞琦, 牛楠, 等.双级对转压气机多工况数值分析研究[J].西北工业大学学报, 8,6(5):535-539.
[13] 高丽敏, 白莹, 韩伟, 等.导叶调节对双级对转压气机性能影响的研究[J].工程热物理学报, 0,1(4):573-576.
[14] 刘波, 杨艳, 王掩刚, 等.设计压比和转速变化对对转压气机性能的影响研究[J].西北工业大学学报,7,5(4):576-580.
[15] 刘波, 侯为民, 陈云永, 等.对转压气机转差特性试验与数值模拟[J].航空动力学报,9,4(2):403-408.
[16] Wilke I,Kau H P.A Numerical Investigation of the Influence of Casing Treatments on the Tip Leakage Flow in a HPC Front Stage[R].ASME 2002-GT-30642.
[17] Rabe D C, Hah C.Application of Casing Circumferential Grooves for Improved Stall Margin in a Ttransonic Axial Compressor[R].ASME 2002-GT-30641.
[18] Behnam H B, Joao A T, Paul C, Ivey, et al.Parametric Study of Tip Clearance Casing Treatment on Performance and Stability of a Transonic Axial Compressor[R].ASME 2004-GT-53390.
[19] LU Xingen, ZHU Junqiang, CHU Wuli, et al.The Effect of Stepped Tip Gap on Performance and Flowfield of a Subsonic Axial Flow Compressor Rotor[R].ASME 2005-GT-69106.