Study on the mixing characteristics of circular transverse jet in crossflow

Li, Ziwan; Yuan, Yixiang; Varsegov, V. L.; Guo, Baoting; Xiao, Bo; Duan, P. H.

doi:10.1016/j.ast.2021.106599

Cited by 12 publications

(1 citation statement)

References 25 publications

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“…In fluid dynamics and related fields, mixing efficiency and mixing coefficient 56 are both measures used to quantify how effectively different fluid streams mix together. However, they represent different aspects of the mixing process and are calculated differently.…”

Section: Resultsmentioning

confidence: 99%

Using shock generator for the fuel mixing of the extruded single 4-lobe nozzle at supersonic combustion chamber

Alizadeh,

Jasim,

Sohrabi

et al. 2024

Sci Rep

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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.

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Section: Resultsmentioning

confidence: 99%