Depositing a reasonable amount of power ahead of a body, that is the so‐called ‘energy deposition,’ is promising for drag reduction in high‐speed flows. This paper experimentally demonstrates that by repetitively depositing laser‐pulse energies up to 80 kHz a quasi‐steady‐state active air spike is built up in the bow shock layer, and an efficiency of energy deposition of up to 600% is obtained. The drag decrease is an almost‐linear function with respect to a laser‐pulse repetition frequency.


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    Titel :

    Efficient Supersonic Drag Reduction using Repetitive Laser Pulses of up to 80 kHz


    Beteiligte:
    Sasoh, Akihiro (Autor:in) / Kim, Jae‐Hyung (Autor:in) / Yamashita, Kiyokazu (Autor:in) / Sakai, Takeharu (Autor:in) / Matsuda, Atsushi (Autor:in) / Eckel, Hans‐Albert (Herausgeber:in) / Scharring, Stefan (Herausgeber:in)

    Kongress:

    BEAMED ENERGY PROPULSION: Seventh International Symposium ; 2011 ; Ludwigsburg, (Germany)


    Erschienen in:

    AIP Conference Proceedings ; 1402 , 1 ; 424-429


    Erscheinungsdatum :

    10.11.2011


    Format / Umfang :

    6 pages





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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    Sasoh, A. / Kim, J.-H. / Yamashita, K. et al. | British Library Conference Proceedings | 2011


    Supersonic Drag Reduction with Repetitive Laser Pulses Through a Blunt Body

    Sasoh, Akihiro / Sekiya, Yohei / Sakai, Takeharu et al. | AIAA | 2010


    Supersonic Drag Reduction with Repetitive Laser Pulses Through a Blunt Body

    Sasoh, A. / Sakai, T. / Sekiya, Y. et al. | British Library Conference Proceedings | 2009



    Supersonic Drag Reduction with Repetitive Laser Pulses Through a Blunt Body

    Sasoh, Akihiro / Sakai, Takeharu / Sekiya, Yohei et al. | AIAA | 2009