Thrust augmentation optimization through supersonic after-burning in scramjet engine nozzles via surrogate-assisted evolutionary algorithms

Michael J. Candon, Hideaki Ogawa, Graham E. Dorrington

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Scramjets are a class of hypersonic airbreathing engine that are associated with realizing the technology required for economical, reliable and high-speed access-to-space and atmospheric transport. The expanding flow in the scramjet nozzle comprises of unburned hydrogen which under ideal conditions, can be utilized to introduce an after-burning scheme. After-burning augments the thrust produced by the scramjet nozzle and creates a more robust nozzle design. This paper presents a single-objective design optimization considering three design variables with the objective of producing maximum thrust augmentation. It is found that significant levels of thrust augmentation are produced based upon contributions from increased pressure, mass flow and energy in the nozzle. Further understanding of the phenomenon by which thrust augmentation is being produced is provided in the form of variance-based global sensitivity analysis, force contribution breakdowns, analysis of the nozzle flowfields, analysis of the surface pressure and shear stress distributions acting on the nozzle wall and analysis of the combustion efficiency.

本文言語英語
ホスト出版物のタイトル53rd AIAA Aerospace Sciences Meeting
出版社American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN(印刷版)9781624103438
DOI
出版ステータス出版済み - 1 1 2015
外部発表はい
イベント53rd AIAA Aerospace Sciences Meeting, 2015 - Kissimmee, 米国
継続期間: 1 5 20151 9 2015

出版物シリーズ

名前53rd AIAA Aerospace Sciences Meeting

その他

その他53rd AIAA Aerospace Sciences Meeting, 2015
Country米国
CityKissimmee
Period1/5/151/9/15

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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