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Numerical Investigation and Optimization of Variable Guide Vanes Adjustment in a Transonic Compressor

Author

Listed:
  • Ziyuan Wang

    (Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

  • Xiaodong Ren

    (Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

  • Wei Zhu

    (China North Engine Research Institute, Tianjin 300400, China)

  • Xuesong Li

    (Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

  • Chunwei Gu

    (Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

Abstract

In the present work, numerical simulation and optimization was carried out to analyze the mechanism of the variable guide vanes (VGVs) of a transonic compressor. A seven-stage transonic compressor including three-stage VGVs was studied. The VGVs were adjusted individually and jointly under different IGV opening degrees. Changes in performance and shock wave were analyzed, and the coupling effect of the VGV joint adjustment was summarized. Aiming at the maximum efficiency, the joint turning angles were optimized. A novel phenomenon was found wherein the VGV adjustment can affect not only its own performance and that of adjacent downstream blades, but also that of upstream blades. Incidence and performance of upstream blades are improved, but those of the VGV and its adjacent downstream blades are deteriorated. VGV adjustment weakens the shock wave and shock-induced boundary layer separation. The optimal solution for VGV joint adjustment is the combination of the optimal solutions for single VGV adjustments. The joint adjustment optimization improves the efficiency by 0.2–1.93% under different IGV opening degrees.

Suggested Citation

  • Ziyuan Wang & Xiaodong Ren & Wei Zhu & Xuesong Li & Chunwei Gu, 2023. "Numerical Investigation and Optimization of Variable Guide Vanes Adjustment in a Transonic Compressor," Energies, MDPI, vol. 16(1), pages 1-19, January.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:1:p:567-:d:1024235
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    References listed on IDEAS

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    2. Kim, T.S., 2004. "Comparative analysis on the part load performance of combined cycle plants considering design performance and power control strategy," Energy, Elsevier, vol. 29(1), pages 71-85.
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