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Effect of double bypass conditions on the thermodynamic characteristics and internal flow mechanisms in a variable core cycle compression system

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Listed:
  • Luo, Qiaodan
  • Zhao, Shengfeng
  • Zhou, Shiji
  • Wang, Haoran
  • Yao, Lipan
  • Yang, Chengwu
  • Lu, Xingen
  • Zhu, Junqiang

Abstract

The performance of variable cycle core compression system (VCCCS) is crucial for achieving mode transition in variable cycle engine (VCE). The double bypass matching characteristics and internal flow mechanisms of the VCCCS under various conditions are investigated in this study. The results indicate that, in the low bypass ratio (LBR) mode, Under the near choke or design point conditions of external bypass, internal bypass throttling causes the excessive blockage of low-energy fluid near the suction surface of high-pressure compressor (HPC) second stator, which leading the flow instability in VCCCS. Under the near stall condition of external bypass, internal bypass throttling causes the CDFS to reach the stall boundary firstly. The flow instability is triggered by the interaction between tip leakage flow and shock waves in CDFS rotor tip. Following mode transition, the CDFS exhibits lower flow and load, resulting in changes in the matching state of HPC due to the strong coupling effects of upstream components, thereby altering the matching characteristics and flow instability mechanisms of the VCCCS. The impact of different bypass conditions on VCCCS performance is elucidated, further establishing the association between bypass exit meridian velocity and VCCCS performance, which is helpful to select key design parameters.

Suggested Citation

  • Luo, Qiaodan & Zhao, Shengfeng & Zhou, Shiji & Wang, Haoran & Yao, Lipan & Yang, Chengwu & Lu, Xingen & Zhu, Junqiang, 2024. "Effect of double bypass conditions on the thermodynamic characteristics and internal flow mechanisms in a variable core cycle compression system," Energy, Elsevier, vol. 304(C).
    • Handle: RePEc:eee:energy:v:304:y:2024:i:c:s0360544224019741
    DOI: 10.1016/j.energy.2024.132200
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    as
    1. Aygun, Hakan & Cilgin, Mehmet Emin & Ekmekci, Ismail & Turan, Onder, 2020. "Energy and performance optimization of an adaptive cycle engine for next generation combat aircraft," Energy, Elsevier, vol. 209(C).
    2. Chiaramonti, David & Prussi, Matteo & Buffi, Marco & Tacconi, Daniela, 2014. "Sustainable bio kerosene: Process routes and industrial demonstration activities in aviation biofuels," Applied Energy, Elsevier, vol. 136(C), pages 767-774.
    3. Aygun, Hakan, 2024. "Thermodynamic responses of bleed air on separated flow high by-pass turbofan engine under constant speed and constant thrust cases," Energy, Elsevier, vol. 291(C).
    4. Zhou, Nan & Price, Lynn & Yande, Dai & Creyts, Jon & Khanna, Nina & Fridley, David & Lu, Hongyou & Feng, Wei & Liu, Xu & Hasanbeigi, Ali & Tian, Zhiyu & Yang, Hongwei & Bai, Quan & Zhu, Yuezhong & Xio, 2019. "A roadmap for China to peak carbon dioxide emissions and achieve a 20% share of non-fossil fuels in primary energy by 2030," Applied Energy, Elsevier, vol. 239(C), pages 793-819.
    5. Jakovljević, Ivan & Mijailović, Radomir & Mirosavljević, Petar, 2018. "Carbon dioxide emission during the life cycle of turbofan aircraft," Energy, Elsevier, vol. 148(C), pages 866-875.
    6. Balli, Ozgur & Caliskan, Hakan, 2021. "Turbofan engine performances from aviation, thermodynamic and environmental perspectives," Energy, Elsevier, vol. 232(C).
    7. Tang, Li & Liu, Wei & Liu, Yan-Jun, 2024. "Dual design of control law and switching law for turbofan systems under multiple disturbances," Energy, Elsevier, vol. 296(C).
    8. Balli, Ozgur & Caliskan, Nesrin & Caliskan, Hakan, 2023. "Aviation, energy, exergy, sustainability, exergoenvironmental and thermoeconomic analyses of a turbojet engine fueled with jet fuel and biofuel used on a pilot trainer aircraft," Energy, Elsevier, vol. 263(PD).
    9. Cheng, Hongzhi & Zhou, Chuangxin & Lu, Xingen & Zhao, Shengfeng & Han, Ge & Yang, Chengwu, 2023. "Robust aerodynamic optimization and design exploration of a wide-chord transonic fan under geometric and operational uncertainties," Energy, Elsevier, vol. 278(PB).
    10. Ringsred, Anna & van Dyk, Susan & Saddler, John (Jack), 2021. "Life-cycle analysis of drop-in biojet fuel produced from British Columbia forest residues and wood pellets via fast-pyrolysis," Applied Energy, Elsevier, vol. 287(C).
    11. Seifritz, W., 1995. "Avoiding excessive greenhouse effect by delayed emission of carbon dioxide from the fossil-fuel cycle," Applied Energy, Elsevier, vol. 51(1), pages 39-49.
    12. Luo, Qiaodan & Zhao, Shengfeng & Zhou, Shiji & Yao, Lipan & Yang, Chengwu & Lu, Xingen & Zhu, Junqiang, 2024. "Influence of diversified dihedral stator on the thermodynamic performance and flow loss characteristics of a variable core driven fan stage," Energy, Elsevier, vol. 294(C).
    Full references (including those not matched with items on IDEAS)

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