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- Title
Using shock generator for the fuel mixing of the extruded single 4-lobe nozzle at supersonic combustion chamber.
- Authors
Alizadeh, As'ad; Jasim, Dheyaa J.; Sohrabi, Neaman; Ahmed, Mohsen; Ameer, S. Abdul; Ibrahim, Safaa Mohammed; Dabis, Hasan Khalid; Hussein, Ali Adhab; Sultan, Abbas J.
- Abstract
The importance of the fuel injection configuration on the propulsion efficiency of high-speed vehicles is apparent. In this article, the use of an annular extruded 4-lobe nozzle for the injection of fuel jet in a supersonic combustor of a scramjet engine in the existence of a shock generator is examined. The main aim of this study is to obtain the efficient jet arrangement for efficient fuel mixing inside the engine of hypersonic vehicles. A numerical approach is used to model the supersonic air stream and cross-jet flow with the SST turbulence model. The role of nozzle altitude and internal air jet on the fuel mixing of the hydrogen within the high-speed domain are disclosed. The importance of the horseshoe vortex and counter-rotating vortex on the fuel distribution is also presented. Our results show that the usage of a coaxial jet instead of an annular jet would increase fuel mixing by more than 40% in the combustion chamber.
- Subjects
COMBUSTION chambers; JET fuel; SCRAMJET engines; JET engines; AIR jets; STREAMFLOW; NOZZLES; HYPERSONIC aerodynamics
- Publication
Scientific Reports, 2024, Vol 14, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-024-57103-0