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Improved Body Force Model for Estimating Off-Design Axial Compressor Performance

Author

Listed:
  • Jia Huang

    (School of Aeronautics and Astronautics, Central South University, Changsha 410083, China)

  • Yongzhao Lv

    (Beijing Aeronautical Engineering Technical Research Center, Beijing 100076, China
    Unit 93609 of the Chinese People’s Liberation Army, Hohhot 010100, China)

  • Aiguo Xia

    (Beijing Aeronautical Engineering Technical Research Center, Beijing 100076, China)

  • Shengliang Zhang

    (Beijing Aeronautical Engineering Technical Research Center, Beijing 100076, China)

  • Wei Tuo

    (Beijing Aeronautical Engineering Technical Research Center, Beijing 100076, China)

  • Hongtao Xue

    (Beijing Aeronautical Engineering Technical Research Center, Beijing 100076, China)

  • Yantao Sun

    (Beijing Aeronautical Engineering Technical Research Center, Beijing 100076, China)

  • Xiuran He

    (Beijing Aeronautical Engineering Technical Research Center, Beijing 100076, China)

Abstract

Based on the COMSOL software, body forces substituted into the Reynolds-averaged Navier–Stokes (RANS) equations as the source terms instead of the actual blade rows were improved to better predict the compressor performance. Improvements in parallel body force modeling were implemented, central to which were the local flow quantities. This ensured accurate and reliable off-design performance prediction. The parallel force magnitude mainly depended on the meridional entropy gradient extracted from three-dimensional (3D) steady single-passage RANS solutions. The COMSOL software could easily and accurately translate the pitchwise-averaged entropy into the grid points of the body force domain. A NASA Rotor 37 was used to quantify the improved body force model to represent the compressor. Compared with the previous model, the improved body force model was more efficient for the numerical calculations, and it agreed well with the experimental data and computational fluid dynamics (CFD) results. The results indicate that the improved body force model could quickly and efficiently capture the flow field through a turbomachinery blade row.

Suggested Citation

  • Jia Huang & Yongzhao Lv & Aiguo Xia & Shengliang Zhang & Wei Tuo & Hongtao Xue & Yantao Sun & Xiuran He, 2022. "Improved Body Force Model for Estimating Off-Design Axial Compressor Performance," Energies, MDPI, vol. 15(12), pages 1-18, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:12:p:4389-:d:840359
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    References listed on IDEAS

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    1. Shuai Li & Yan Liu & Mohammad Omidi & Chuang Zhang & Hongkun Li, 2021. "Numerical Investigation of Transient Flow Characteristics in a Centrifugal Compressor Stage with Variable Inlet Guide Vanes at Low Mass Flow Rates," Energies, MDPI, vol. 14(23), pages 1-18, November.
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