通过计算研究，探讨蛇形喷射器在超燃冲压发动机燃烧室中用于氢气混合的应用。

Usage of serpentine injector for hydrogen mixing at combustion chamber of scramjet engine via a computational study.

作者信息

Mir Ahmed, Rasheed Rassol Hamed, Singh Pradeep Kumar, Dixit Saurav, Gupta Tannmay, El-Shafay A S, Ghachem Kaouther, Kolsi Lioua

机构信息

Department of Chemical and Materials Engineering, College of Engineering, Northern Border University, P.O. Box 1321, Arar, Saudi Arabia.

Air Conditioning Engineering Department, Faculty of Engineering, Warith Al-Anbiyaa University, Karbala, Iraq.

出版信息

Sci Rep. 2025 Apr 16;15(1):13089. doi: 10.1038/s41598-025-98077-x.

DOI:10.1038/s41598-025-98077-x

PMID:40240570

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12003796/

Abstract

This article fully investigates the hydrogen fuel jet mixing behind the strut with a serpentine injector at a supersonic combustion chamber. The main goal of this work is to analyze the three-dimensional flow of hydrogen jet released from the serpentine nozzle by computational technique. The role of serpentine nozzle height is also examined to find the optimum location for fuel mixing. Meanwhile, the extruded serpentine nozzle located behind the strut is also studied. The strength of circulation in these configurations is compared and our results show that the fuel circulation strength is improved when the serpentine nozzle is located in a higher height behind the strut. Moreover, a comparison of the fuel mixing behind the strut indicates this injector has significantly higher fuel mixing efficiency (about 40%) in comparison with a circular nozzle.

摘要

本文全面研究了在超音速燃烧室中带有蛇形喷注器的支柱后方的氢燃料射流混合情况。这项工作的主要目标是通过计算技术分析从蛇形喷嘴喷出的氢射流的三维流动。还研究了蛇形喷嘴高度的作用，以找到燃料混合的最佳位置。同时，也对位于支柱后方的挤压式蛇形喷嘴进行了研究。比较了这些构型中的环流强度，我们的结果表明，当蛇形喷嘴位于支柱后方更高的位置时，燃料环流强度会提高。此外，对支柱后方燃料混合情况的比较表明，与圆形喷嘴相比，这种喷注器具有显著更高的燃料混合效率（约40%）。