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<p>The objective of this paper is to identify the optimum strut configuration in order to improve the efficiency of the scramjet engine. The simulation was conducted using a density-based solver with the k-omega SST model to determine the Mach number, combustion efficiency, and pressure loss across the length. The results show that the 3 strut configurations generate an efficiency of 93% with a total pressure loss of 0.05, which is better than existing configurations. The novelty of the study is to design a spearhead-shaped strut configuration with multiple trailing struts to control shock formation and obtain optimum efficiency compared to existing configurations. The present study is limited to two-dimensional simulations at a Mach 2 using a simplified reaction model. Consequently, the findings provide qualitative insights into strut-induced mixing and pressure-loss trends rather than direct performance predictions for practical scramjet engines. The proposed method can be used for scramjet engines as well as high-speed applications of air vehicles.</p>

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Performance Study of Various Strut Configuration for Supersonic Applications

  • 期刊论文

  • 发表日期：

    2026年2月25日

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  • C. K. Akhil,
  • K. Balaji,
  • Priyanshu Yadav,
  • Sandeepan Singh

摘要

The objective of this paper is to identify the optimum strut configuration in order to improve the efficiency of the scramjet engine. The simulation was conducted using a density-based solver with the k-omega SST model to determine the Mach number, combustion efficiency, and pressure loss across the length. The results show that the 3 strut configurations generate an efficiency of 93% with a total pressure loss of 0.05, which is better than existing configurations. The novelty of the study is to design a spearhead-shaped strut configuration with multiple trailing struts to control shock formation and obtain optimum efficiency compared to existing configurations. The present study is limited to two-dimensional simulations at a Mach 2 using a simplified reaction model. Consequently, the findings provide qualitative insights into strut-induced mixing and pressure-loss trends rather than direct performance predictions for practical scramjet engines. The proposed method can be used for scramjet engines as well as high-speed applications of air vehicles.