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The fuel mixing of multi-annular extruded fuel jets in cavity flame holder at supersonic combustion chamber: Computational study

Author

Listed:
  • Naser Kamyarpour

    (Department of Mechanical Engineering, Aliabad Katoul Branch, Islamic Azad University, Aliabad Katoul, Iran)

  • Farhad Hosseinnejad

    (��Department of Mechanical Engineering, Sari Branch, Islamic Azad University Sari, Iran)

  • Seyyed Masoud Seyyedi

    (Department of Mechanical Engineering, Aliabad Katoul Branch, Islamic Azad University, Aliabad Katoul, Iran‡Energy Research Center, Aliabad Katoul Branch, Islamic Azad University Aliabad Katoul, Iran)

  • M. Hashemi-Tilehnoee

    (�Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain)

Abstract

A cavity-flame holder is widely used for the injection of the fuel jet in a supersonic combustor due to high fuel residence time. This paper presents extensive results about the impacts of extruded annular multi-jets for improving fuel mixing inside the cavity flame holder. A three-dimensional model of the cavity with multiple extruded nozzles in different lengths and conditions has been examined in this study to investigate the flow and fuel mixing inside the cavity. In addition, the usage of internal air jets is investigated and extensive comparisons between the elongation of the extruded nozzle and the use of the inner air jets for better fuel distribution are done. The presented results show that the usage of both inner air jet and nozzle elongation significantly enhances the fuel distribution within the cavity flame-holder. The achieved finding confirms that the latter technique is more efficient for the fuel mixing in the combustor of a scramjet engine.

Suggested Citation

  • Naser Kamyarpour & Farhad Hosseinnejad & Seyyed Masoud Seyyedi & M. Hashemi-Tilehnoee, 2025. "The fuel mixing of multi-annular extruded fuel jets in cavity flame holder at supersonic combustion chamber: Computational study," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 36(03), pages 1-13, March.
    • Handle: RePEc:wsi:ijmpcx:v:36:y:2025:i:03:n:s012918312450195x
    DOI: 10.1142/S012918312450195X
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