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Computational study of transverse oblique injectors for improvement of fuel mixing in scramjet engine of supersonic vehicles

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  • Wang, Haicui
  • Ma, Zhimin
  • Bian, Jing
  • Cao, Liang
  • Tan, Ji-Ke
  • Li, Dong

Abstract

The efficient injection of fuel in the combustion chamber is significant for the advancement of the current supersonic vehicles. This study has focused on the role of non-alignment injector configuration on the fuel mixing of the hydrogen jet inside the combustion chamber of the scramjet engine. The fuel distribution and vortex generation behind both annular and coaxial jets are modeled and compared to disclose the mechanism of fuel diffusion in the combustion chamber. A three-dimensional model of two nozzle angles is produced to visualize the complicated flow interaction of four non-aligned circular jets at supersonic cross-flow. Our results indicate that the strength of the vortex pair produced by the core of the fuel jet is extended more when the angle of the nozzles is increased. The flow visualization of the jet also confirms that the flow becomes more complex in non-alignment jet configurations and fuel mixing is improved by the addition of the internal air jet in the suggested injection model.

Suggested Citation

  • Wang, Haicui & Ma, Zhimin & Bian, Jing & Cao, Liang & Tan, Ji-Ke & Li, Dong, 2024. "Computational study of transverse oblique injectors for improvement of fuel mixing in scramjet engine of supersonic vehicles," Energy, Elsevier, vol. 306(C).
    • Handle: RePEc:eee:energy:v:306:y:2024:i:c:s0360544224021637
    DOI: 10.1016/j.energy.2024.132389
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    References listed on IDEAS

    as
    1. F. Pish & Tran Dinh Manh & M. Barzegar Gerdroodbary & Nguyen Dang Nam & Rasoul Moradi & Houman Babazadeh, 2020. "Computational study of the cavity flow over sharp nose cone in supersonic flow," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 31(06), pages 1-12, June.
    2. Li, Yaohui & Zhu, Guanghui & Chao, Yanpu & Chen, Liangbin & Alizadeh, As'ad, 2023. "Comparison of the different shapes of extruded annular nozzle on the fuel mixing of the hydrogen jet at supersonic combustion chamber," Energy, Elsevier, vol. 281(C).
    3. Amin Hassanvand & M. Barzegar Gerdroodbary & Amir Musa Abazari, 2021. "Injection of hydrogen sonic multi-jet on inclined surface at supersonic flow," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 32(03), pages 1-14, March.
    4. Ma, Lianghua & Liu, Xiaoliang & Liu, Haoyang & Alizadeh, As'ad & Shamsborhan, Mahmoud, 2023. "The influence of the struts on mass diffusion system of lateral hydrogen micro jet in combustor of scramjet engine: Numerical study," Energy, Elsevier, vol. 279(C).
    Full references (including those not matched with items on IDEAS)

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