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<p>The aim of this study is to present and evaluate several truncated variants of the plug rocket nozzle. We provide a computational method to generate nozzle profiles. The characteristics of the technique, applied to the two-dimensional isentropic flow of a high-temperature model below the molecular dissociation threshold, are used in the development of a supersonic nozzle. In tandem with profile development, a check of the truncation of the plug nozzle at various percentages (20%, 40%, and 50%) is carried out. To investigate the many related phenomena, a numerical study is performed using ANSYS-FLUENT. When compared to an ideal nozzle, the results demonstrate that truncating the plug nozzle provides higher performance.</p>

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Investigation the Design and Performance Analysis of a Truncated Plug Nozzle for Rocket Engine

  • 期刊论文

  • 发表日期：

    2026年8月4日

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  • Omar Abada,
  • Hakim Kbab,
  • Sidali Haif

摘要

The aim of this study is to present and evaluate several truncated variants of the plug rocket nozzle. We provide a computational method to generate nozzle profiles. The characteristics of the technique, applied to the two-dimensional isentropic flow of a high-temperature model below the molecular dissociation threshold, are used in the development of a supersonic nozzle. In tandem with profile development, a check of the truncation of the plug nozzle at various percentages (20%, 40%, and 50%) is carried out. To investigate the many related phenomena, a numerical study is performed using ANSYS-FLUENT. When compared to an ideal nozzle, the results demonstrate that truncating the plug nozzle provides higher performance.