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Numerical Investigations of Film Cooling and Particle Impact on the Blade Leading Edge

Author

Listed:
  • Ke Tian

    (Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, China
    School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China)

  • Zicheng Tang

    (Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, China)

  • Jin Wang

    (Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, China
    School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China)

  • Milan Vujanović

    (Department of Energy, Power Engineering and Environment, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10002 Zagreb, Croatia)

  • Min Zeng

    (Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, China)

  • Qiuwang Wang

    (Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, China)

Abstract

As a vital power propulsion device, gas turbines have been widely applied in aircraft. However, fly ash is easily ingested by turbine engines, causing blade abrasion or even film hole blockage. In this study, a three-dimensional turbine cascade model is conducted to analyze particle trajectories at the blade leading edge, under a film-cooled protection. A deposition mechanism, based on the particle sticking model and the particle detachment model, was numerically investigated in this research. Additionally, the invasion efficiency of the AGTB-B1 turbine blade cascade was investigated for the first time. The results indicate that the majority of the impact region is located at the leading edge and on the pressure side. In addition, small particles (1 μm and 5 μm) hardly impact the blade’s surface, and most of the impacted particles are captured by the blade. With particle size increasing, the impact efficiency increases rapidly, and this value exceeds 400% when the particle size is 50 μm. Invasion efficiencies of small particles (1 μm and 5 μm) are almost zero, and the invasion efficiency approaches 12% when the particle size is 50 μm.

Suggested Citation

  • Ke Tian & Zicheng Tang & Jin Wang & Milan Vujanović & Min Zeng & Qiuwang Wang, 2021. "Numerical Investigations of Film Cooling and Particle Impact on the Blade Leading Edge," Energies, MDPI, vol. 14(4), pages 1-14, February.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:4:p:1102-:d:502119
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    References listed on IDEAS

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    1. Prasert Prapamonthon & Soemsak Yooyen & Suwin Sleesongsom & Daniele Dipasquale & Huazhao Xu & Jianhua Wang & Zhaoqing Ke, 2018. "Investigation of Cooling Performances of a Non-Film-Cooled Turbine Vane Coated with a Thermal Barrier Coating Using Conjugate Heat Transfer," Energies, MDPI, vol. 11(4), pages 1-17, April.
    2. Yoon Seong Jeong & Jun Su Park, 2020. "Effect of Inlet Compound Angle of Backward Injection Film Cooling Hole," Energies, MDPI, vol. 13(4), pages 1-11, February.
    3. Fei Zhang & Zhenxia Liu & Zhengang Liu & Weinan Diao, 2020. "Experimental Study of Sand Particle Deposition on a Film-Cooled Turbine Blade at Different Gas Temperatures and Angles of Attack," Energies, MDPI, vol. 13(4), pages 1-19, February.
    4. Peng Guan & Yan-Ting Ai & Cheng-Wei Fei, 2019. "An Enhanced Flow-Thermo-Structural Modeling and Validation for the Integrated Analysis of a Film Cooling Nozzle Guide Vane," Energies, MDPI, vol. 12(14), pages 1-20, July.
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    Cited by:

    1. Wen Wang & Yan Yan & Yeqi Zhou & Jiahuan Cui, 2022. "Review of Advanced Effusive Cooling for Gas Turbine Blades," Energies, MDPI, vol. 15(22), pages 1-28, November.
    2. Peng Liu & Wei Liu & Kexin Gong & Chengjun Han & Hong Zhang & Zhucheng Sui & Renguo Hu, 2022. "Numerical Study on Particulate Fouling Characteristics of Flue with a Particulate Fouling Model Considering Deposition and Removal Mechanisms," Energies, MDPI, vol. 15(22), pages 1-22, November.

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