Effect of shock generator on fuel mixing in an annular single lobe transverse nozzle at the supersonic combustion chamber of a scramjet engine using computational fluid dynamics

Dechen Wei, Yuanyuan Jiao, Ning Zhang and Yukun Fan

Energy, 2023, vol. 283, issue C

Abstract: This study investigates the influence of a wedge shock generator on hydrogen mixing in an annular single lobe transverse nozzle at the supersonic combustion chamber of a scramjet engine using computational fluid dynamics (CFD). The fuel mixing process is crucial for efficient combustion in scramjet engines, which operate at high speeds and require rapid mixing of fuel and air. The shock generator is a device that generates a shock wave in the flow field, which can enhance mixing by increasing turbulence and promoting the fuel penetration into the air stream. A comparison of three lobe injectors is done to attain the efficient nozzle type for the fuel mixing inside the combustion chamber. CFD simulations were done to analyze the consequence of the shock generator on fuel mixing in the nozzle and assess its potential for improving combustion efficiency. The results show that the usage of shock generator can significantly enhance fuel-air mixing in the nozzle, leading to improved combustion efficiency and reduced emissions. The findings of this study provide valuable insights into the design and optimization of shock generators for scramjet engines, which can contribute to the development of more efficient and sustainable air-breathing propulsion systems.

Keywords: Numerical simulations; Combustion chamber; Scramjet engine; Hydrogen jet; Shock wave; Supersonic flow (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544223019096
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:283:y:2023:i:c:s0360544223019096

DOI: 10.1016/j.energy.2023.128515

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().