Theoretical and Natural Science

- The Open Access Proceedings Series for Conferences


Theoretical and Natural Science

Vol. 5, 25 May 2023


Open Access | Article

Analysis and Possible Improvements of Scramjet Engines: The Effective Thrust and the Combustion Stability Problems

Shirui Wang * 1
1 Pittsburgh Institute, Sichuan University, Chengdu, 610200, China

* Author to whom correspondence should be addressed.

Theoretical and Natural Science, Vol. 5, 204-209
Published 25 May 2023. © 2023 The Author(s). Published by EWA Publishing
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Citation Shirui Wang. Analysis and Possible Improvements of Scramjet Engines: The Effective Thrust and the Combustion Stability Problems. TNS (2023) Vol. 5: 204-209. DOI: 10.54254/2753-8818/5/20230403.

Abstract

The scramjet is the representative of the future jet engine, and it has irreplaceable advantages in terms of working performance and service life. Although it has been developed more than fifty years, there are many problems in the driven system of the scramjet engine. This paper mainly focuses on the problems of the effective thrust and the combustion stability. The research shows that how the pressure ratio affects the positive thrust and the combustion stability. Furthermore, this paper also shows that the elements which can affect the pressure ratio. The lower inlet air temperature is beneficial to enhance the thrust. According to the relevant research which apply the CJ detonation theorem to find the possible reason for the combustion instability. For the possible improvements, the research found that the engine thrust at different speed and the allowable maximum speed. The type of fuel and the reactivity of the fuel can influence the thrust.

Keywords

Scramjet engine, Combustion, Thrust, CJ detonation.

References

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2. Eugênio R, Fábio H, Radouan B, Arnaud M. 2020 Highly-resolved Large-eddy Simulations of Combustion Stabilization in a Scramjet Engine Model with Cavity Flameholder. Computers & Fluids, 197: 104344.

3. Allison A, Patton M, Kraig F, Justin W. 2017 Investigation of Supersonic Combustion Dynamics via 50 kHz CH Chemiluminescence Imaging. Proceedings of the Combustion Institute, 36: 2849-2856.

4. Shen H, Zhang Z, Liu Y, Jiang Z. 2018 Theoretical Analysis of Scramjet propulsion Performance. Gas Physics, 3: 12-19.

5. Tai J. 2016 Numerical Study on Three-dimensional CJ Detonation Waves Interacting with Isotropic Turbulence. Science Bulletin (Beijing), 22: 1756-765.

6. Li X, Huang H, Liu H, Du J. 2020 Fuel Reactivity Controlled Self-starting and Propulsion Performance of a Scramjet: A Model Investigation. Energy (Oxford), 195: 116920.

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Data Availability

The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.

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Volume Title
Proceedings of the 2nd International Conference on Computing Innovation and Applied Physics (CONF-CIAP 2023)
ISBN (Print)
978-1-915371-53-9
ISBN (Online)
978-1-915371-54-6
Published Date
25 May 2023
Series
Theoretical and Natural Science
ISSN (Print)
2753-8818
ISSN (Online)
2753-8826
DOI
10.54254/2753-8818/5/20230403
Copyright
25 May 2023
Open Access
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

Copyright © 2023 EWA Publishing. Unless Otherwise Stated