Full flow-path optimization of axisymmetric scramjet engines

H. Ogawa, Y. Alazet, A. Pudsey, R. R. Boyce, A. Isaacs, T. Ray

研究成果: 著書/レポートタイプへの貢献会議での発言

4 引用 (Scopus)

抄録

Scramjet propulsion is a hypersonic airbreathing technology that offers the great potential for economical and flexible access to space and high-speed atmospheric transport. This paper presents the results and physical insight obtained in a design optimization study conducted for axisymmetric scramjet engines. A single-objective optimization has been performed to maximize the performance of a full flow-path scramjet configuration in the presence of nonuniform upstream fuel injection represented by a set of geometric parameters and injection scaling factors. Use is made of a state-of-the-art design methodology coupling a high-fidelity CFD code with an advanced optimization capability based on evolutionary algorithms assisted by surrogate modeling. The flowfields have been investigated to identify key factors and gain insight into underlying physics particularly in comparison with premixed fuel/air flowfields. The optimum flowfield with fuel injection is characterized by a mixed supersonic/subsonic flow regime similar to a transitional mode. The optimum design has been achieved by maximizing the nozzle thrust while reducing skin friction drag by boundary-layer combustion, although it represents a sensitive flowfield due to the delicate mechanism upon which it relies.

元の言語英語
ホスト出版物のタイトル17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011
DOI
出版物ステータス出版済み - 12 1 2011
イベント17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011 - San Francisco, CA, 米国
継続期間: 4 11 20114 14 2011

出版物シリーズ

名前17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011

会議

会議17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011
米国
San Francisco, CA
期間4/11/114/14/11

Fingerprint

supersonic combustion ramjet engines
Fuel injection
fuel injection
engine
Engines
Subsonic flow
optimization
boundary layer combustion
Skin friction
Hypersonic aerodynamics
friction drag
Evolutionary algorithms
Propulsion
Drag
subsonic flow
Nozzles
Computational fluid dynamics
Boundary layers
skin friction
Physics

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering
  • Control and Systems Engineering

これを引用

Ogawa, H., Alazet, Y., Pudsey, A., Boyce, R. R., Isaacs, A., & Ray, T. (2011). Full flow-path optimization of axisymmetric scramjet engines. : 17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011 (17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011). https://doi.org/10.2514/6.2011-2347

Full flow-path optimization of axisymmetric scramjet engines. / Ogawa, H.; Alazet, Y.; Pudsey, A.; Boyce, R. R.; Isaacs, A.; Ray, T.

17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011. 2011. (17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011).

研究成果: 著書/レポートタイプへの貢献会議での発言

Ogawa, H, Alazet, Y, Pudsey, A, Boyce, RR, Isaacs, A & Ray, T 2011, Full flow-path optimization of axisymmetric scramjet engines. : 17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011. 17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011, 17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011, San Francisco, CA, 米国, 4/11/11. https://doi.org/10.2514/6.2011-2347
Ogawa H, Alazet Y, Pudsey A, Boyce RR, Isaacs A, Ray T. Full flow-path optimization of axisymmetric scramjet engines. : 17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011. 2011. (17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011). https://doi.org/10.2514/6.2011-2347
Ogawa, H. ; Alazet, Y. ; Pudsey, A. ; Boyce, R. R. ; Isaacs, A. ; Ray, T. / Full flow-path optimization of axisymmetric scramjet engines. 17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011. 2011. (17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011).
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