Forced Response Calculation of Axial Compressor Rotor Blade Considering Wake Sweeping and Wake Fluctuation

  • PENG Wei ,
  • LI Xuesong ,
  • REN Xiaodong ,
  • GU Chunwei ,
  • QUE Xiaobin
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  • 1. Gas Turbine Research Institute, Tsinghua University, Beijing 100084, China
    2. China Untied Gas Turbine Technology Co., Ltd., Beijing 102209, China

网络出版日期: 2025-07-04

基金资助

This research was supported by the National Science and Technology Major Project of China (J2019-II-0005-0025).

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2025

Forced Response Calculation of Axial Compressor Rotor Blade Considering Wake Sweeping and Wake Fluctuation

  • PENG Wei ,
  • LI Xuesong ,
  • REN Xiaodong ,
  • GU Chunwei ,
  • QUE Xiaobin
Expand
  • 1. Gas Turbine Research Institute, Tsinghua University, Beijing 100084, China
    2. China Untied Gas Turbine Technology Co., Ltd., Beijing 102209, China

Online published: 2025-07-04

Supported by

This research was supported by the National Science and Technology Major Project of China (J2019-II-0005-0025).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2025

摘要

上游叶片尾迹湍流脉动会影响尾迹扫掠引起的压气机叶片强迫振动。为了研究尾迹湍流脉动的影响和快速预测叶片强迫振动,本文提出一种强迫响应计算模型。该模型在常规的强迫响应计算方法的基础上考虑了上游叶片尾迹湍流脉动的激励。本文以某3级压气机为研究对象,取进口导叶77.8%叶高处的叶型进行准二维大涡模拟计算。通过对进口导叶的流场的分析发现,进口导叶尾迹中存在较明显的总压脉动。本文将上游尾迹湍流脉动的影响以总压脉动的形式加入强迫响应计算模型中,具体来说是根据大涡模拟结果建立总压脉动幅值和总压亏损关系式,并且根据吸力面和压力面位置分区设置不同公式,以获得更为准确的激励力。计算结果表明,只考虑尾迹扫掠时最大振幅比试验结果低27%,同时考虑尾迹扫掠和尾迹脉动时计算结果仅比试验结果低6%,验证了所提模型的有效性。

本文引用格式

PENG Wei , LI Xuesong , REN Xiaodong , GU Chunwei , QUE Xiaobin . Forced Response Calculation of Axial Compressor Rotor Blade Considering Wake Sweeping and Wake Fluctuation[J]. 热科学学报, 2025 , 34(4) : 1241 -1256 . DOI: 10.1007/s11630-025-2124-3

Abstract

Upstream blade wake turbulence fluctuation may affect compressor blade forced response caused by wake sweeping. In order to investigate the effect of wake turbulence fluctuation and predict the blade vibration more accurately, this paper proposes a forced response calculation model that considers the excitation of upstream blade wake turbulence fluctuation on the basis of the conventional forced response calculation method. Using a three-stage axial compressor as the research subject, a quasi-three-dimensional large eddy simulation is conducted using the blade profile at 77.8% of the span of the inlet guide vane. Analysis of the flow field around the inlet guide vane indicates noticeable total pressure fluctuation in the wake of the inlet guide vane. The influence of upstream wake turbulence fluctuation is incorporated into the forced response calculation model in the form of total pressure fluctuation to obtain more accurate excitation forces. Specifically, the relationship between the amplitude of total pressure fluctuation and total pressure loss is established according to the results of large eddy simulation, and different formulas are set according to the position zoning of suction surface and pressure surface. Computational results show that, if only wake sweeping is considered, the maximum amplitude is 27% lower than the test result. However, when wake sweeping and wake fluctuation are considered, the calculated result better matches the test result, with only a 6% reduction compared to the test result. The results confirm the effectiveness of the proposed model.

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