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- Title
Application of multi-extruded fuel injectors for mixing enhancement of hydrogen gas at scramjet engine: computational study.
- Authors
Abdollahi, Seyyed Amirreza; Ranjbar, Seyyed Faramarz; Aminian, Saman; Fattahi, M.; Uyen, P. D.
- Abstract
Scramjet engines are considered a highly promising technology for improving high-speed flight. In this study, we investigate the effects of using multi-extruded nozzles on fuel mixing and distribution inside the combustion chamber at supersonic flow. Additionally, we explore the impact of an inner air jet on fuel mixing in annular nozzles. To model fuel penetration in the combustor, we employ a computational technique. Our study compares the roles of three different extruded injectors on fuel diffusion and distribution at supersonic cross-flow. Our findings reveal that the use of an inner air jet increases fuel mixing in the annular jet, while the use of extruded nozzles improves fuel distribution by enhancing the vortices between injectors. These results demonstrate the potential benefits of incorporating multi-extruded nozzles and inner air jets in the design of scramjet engines.
- Subjects
SCRAMJET engines; INTERNAL combustion engines; AIR jets; INJECTORS; HIGH-speed aeronautics; HYDROGEN as fuel; DIESEL motors; JET fuel
- Publication
Scientific Reports, 2023, Vol 13, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-023-46217-6