A counterflowing jet design (a spacecraft and trans-atmospheric subsystem) employs centrally located, supersonic cold gas jets on the face of the vehicle, ejecting into the oncoming free stream. Depending on the supersonic free-stream conditions and the ejected mass flow rate of the counterflowing jets, the bow shock of the vehicle is moved upstream, further away from the vehicle. This results in an increasing shock standoff distance of the bow shock with a progressively weaker shock. At a critical jet mass flow rate, the bow shock becomes so weak that it is transformed into a series of compression waves spread out in a much wider region, thus significantly modifying the flow that wets the outer surfaces, with an attendant reduction in wave and skin friction drag and aerothermal loads.


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    Titel :

    Counterflowing Jet Subsystem Design


    Beteiligte:
    Farr, Rebecca (Autor:in) / Daso, Endwell (Autor:in) / Pritchett, Victor (Autor:in) / Wang, Ten-See (Autor:in)


    Erscheinungsdatum :

    01.09.2010


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Droplet evaporation in a nonpremixed counterflowing flame

    PURI, ISHWAR / AGGARWAL, SURESH | AIAA | 1991




    Observations of Shock Diffusion and Interactions in Supersonic Freestreams with Counterflowing Jets

    Daso, Endwell O. / Pritchett, Victor E. / Wang, Ten-See et al. | NTRS | 2006


    On ignition in counterflowing CO/H2 versus heated air

    Trujillo, J. / Kreutz, T. / Law, C. | AIAA | 1996