Shock / boundary-layer interaction control using three-dimensional bumps in supersonic engine inlets

H. Ogawa, H. Babinsky

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

7 引用 (Scopus)

抜粋

The effects of three dimensional bump control on separated shock-wave / boundarylayer interactions have been investigated experimentally at M = 1.5, aiming to reduce total pressure losses incurred by strong normal shock / boundary-layer interactions. Such a situation occurs, for example, inside mixed-compression supersonic engine inlets or on external-compression inlets. Various bump configurations have been tested and their effects have been evaluated in various aspects such as total pressure recovery and boundary-layer thickness. Without control, the normal shock caused a region of relatively two-dimensional separation. Three-dimensional bumps commonly broke up this separation into individual regions of attached and separated flow, giving an overall reduction of the magnitude of separation. Fairly two-dimensional λ-shock structures and streamwise vortex pairs have been observed in all tested configurations. A configuration comprising multiple long, high, narrow rounded bumps has demonstrated the best performance, producing an appreciable total pressure saving as much as 30% owing to a λ-shock benefit with minimum viscous penalty from localised separation.

元の言語英語
ホスト出版物のタイトル46th AIAA Aerospace Sciences Meeting and Exhibit
出版者American Institute of Aeronautics and Astronautics Inc.
ISBN(印刷物)9781563479373
DOI
出版物ステータス出版済み - 1 1 2008
外部発表Yes

出版物シリーズ

名前46th AIAA Aerospace Sciences Meeting and Exhibit

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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  • これを引用

    Ogawa, H., & Babinsky, H. (2008). Shock / boundary-layer interaction control using three-dimensional bumps in supersonic engine inlets. : 46th AIAA Aerospace Sciences Meeting and Exhibit [2008-0599] (46th AIAA Aerospace Sciences Meeting and Exhibit). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2008-599