航空学报 > 2023, Vol. 44 Issue (14): 628319-628319   doi: 10.7527/S1000-6893.2022.28319

航空发动机非定常流固热声耦合专栏

总温畸变下跨声压气机失速过程非定常模拟

赵红亮1, 张文强2, 邱佳慧3,4,5,6, 张敏3,4,5,6, 杜娟3,4,5,6(), 聂超群3,4,5,6   

  1. 1.华北电力大学 能源动力与机械工程学院,北京  102206
    2.北京理工大学 机电学院,北京  100081
    3.中国科学院 工程热物理研究所 数字孪生研究中心,北京  100190
    4.中国科学院 先进能源动力重点实验室,北京  100190
    5.中国科学院 轻型动力创新研究院,北京  100190
    6.中国科学院大学 工程科学学院,北京  100049
  • 收稿日期:2022-11-28 修回日期:2022-12-20 接受日期:2023-02-06 出版日期:2023-07-25 发布日期:2023-02-13
  • 通讯作者: 杜娟 E-mail:dujuan@iet.cn
  • 基金资助:
    国家自然科学基金(51922098);国家重大科技专项(2017-II-0004-0017)

Unsteady simulation of stall process in transonic compressor with total temperature distortion

Hongliang ZHAO1, Wenqiang ZHANG2, Jiahui QIU3,4,5,6, Min ZHANG3,4,5,6, Juan DU3,4,5,6(), Chaoqun NIE3,4,5,6   

  1. 1.School of Energy Power and Mechanical Engineering,North China Electric Power University,Beijing  102206,China
    2.School of Mechatronical Engineering,Beijing Institute of Technology,Beijing  100081,China
    3.Research Center of Digital Twin,Institute of Engineering Thermo-Physics,Chinese Academy of Sciences,Beijing 100190,China
    4.Key Laboratory of Advanced Energy and Power,Chinese Academy of Sciences,Beijing  100190,China
    5.Innovation Academy for Light-Duty Gas Turbine,Chinese Academy of Sciences,Beijing  100190,China
    6.School of Engineering Science,University of Chinese Academy of Sciences,Beijing  100049,China
  • Received:2022-11-28 Revised:2022-12-20 Accepted:2023-02-06 Online:2023-07-25 Published:2023-02-13
  • Contact: Juan DU E-mail:dujuan@iet.cn
  • Supported by:
    National Natural Science Foundation of China(51922098);National Science and Technology Major Project(2017-II-0004-0017)

摘要:

为研究进气总温畸变条件下跨声压气机失速机理,对德国Darmstadt跨声单级压气机开展进口周向范围180°、高温区500 K总温畸变条件下全环非定常数值模拟研究。结果表明进气总温畸变条件下压气机流量显著减小,总压比大幅下降。压气机转子出口面不同周向位置的总压径向分布不同。对于顺转子叶片旋转方向,在高温区总压逐渐减小,低总温区域的转子出口总压高于高总温区域。随压气机逐渐接近失速点,总压径向分布不均匀性增大。当流量进一步减小后,总温畸变下诱发旋转失速的先兆波为突尖型,最先出现失速先兆的周向位置是转子叶片离开低温区、转入高温畸变区时。失速先兆的周向传播速度约为88.9%转子转速,失速初期失速团的周向传播速度约为66.0%转子转速。整个失速过程伴随转子出口流量的大幅度波动,由失速团沿周向的运动和合并引起。

关键词: 总温畸变, 跨声压气机, 非定常流动, 旋转失速, 突尖型

Abstract:

To investigate the stall mechanism of a transonic compressor with inlet total temperature distortion, full annular unsteady numerical simulations with a 500 K, 180° circumferential total temperature distortion are conducted on the German Darmstadt transonic compressor. The results indicate that the mass flow rate and the total pressure ratio decrease dramatically under the inlet total temperature distortion. The total pressure radial distribution varies at different circumferential positions on the compressor rotor exit. Along the rotor rotating direction, the total pressure gradually decreases in the high temperature region, and gradually increases in the low temperature region. The closer to the stall point, the greater non-uniform of the total pressure radial distribution. As the mass flow is further reduced, the type of the inception induced stall is spike, appearing first when the rotor blades turn into the high total temperature region. The circumferential propagation speed of the stall inception and that of the stall cells at the beginning of the stall are about 88.9% and 66.0% of the rotor speed, respectively. The entire stall process is accompanied by a significant fluctuation of the mass flow, caused by the movement and merging of the stall cells along the circumferential direction.

Key words: total temperature distortion, transonic compressor, unsteady flow, rotating stall, spike

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