A theoretical study of full length and shortened, two dimensional, isentropic, exhaust nozzles integrated with top mounted ramjet propulsion nacelles were conducted. Both symmetric and asymmetric contoured nozzles with a range of angular orientations were considered. Performance comparisons to determine optimum installations for a representative hypersonic vehicle at Mach 5 cruise conditions are presented on the basis of cruise range, propulsive specific impulse, inlet area requirements, and overall lift drag ratio. The effect of approximating the nozzle internal contours with planar surfaces and the determination of viscous and frozen flow effects are also presented.


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    Titel :

    A Preliminary Assessment of the Impact of 2-D Exhaust-Nozzle Geometry on the Cruise Range of a Hypersonic Aircraft with Top-Mounted Ramjet Propulsion


    Beteiligte:
    W. A. Vahl (Autor:in) / J. P. Weidner (Autor:in)

    Erscheinungsdatum :

    1980


    Format / Umfang :

    60 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch