1. Using shock generator for the fuel mixing of the extruded single 4-lobe nozzle at supersonic combustion chamber.
- Author
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Alizadeh, As'ad, Jasim, Dheyaa J., Sohrabi, Neaman, Ahmed, Mohsen, Ameer, S. Abdul, Ibrahim, Safaa Mohammed, Dabis, Hasan Khalid, Hussein, Ali Adhab, and Sultan, Abbas J.
- Subjects
COMBUSTION chambers ,JET fuel ,SCRAMJET engines ,JET engines ,AIR jets ,STREAMFLOW ,NOZZLES ,HYPERSONIC aerodynamics - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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