Investigation of the control parameters of an external-internal compression inlet indicates that the cowl-lip shock provides a signal to position the spike and to start the inlet over a Mach number range from 2.1 to 3.0. Use of a single fixed probe position to control the spike over the range of conditions resulted in a 3.7-count loss in total-pressure recovery at Mach 3.0 and 0 deg angle of attack. Three separate shock-sensing-probe positions were required to set the spike for peak recovery from Mach 2.1 to 3.0 and angles of attack from 0 deg to 6 deg. When the inlet was unstarted, an erroneous signal was obtained from the normal-shock control through most of the starting cycle that prevented the inlet from starting. Therefore, it was necessary to over-ride the normal-shock control signal and not allow the control to position the terminal shock until the spike was positioned.


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    Titel :

    Investigation of Inlet Control Parameters for an External-internal-compression Inlet from Mach 2.1 to 3.0


    Beteiligte:
    Anderson, B. H. (Autor:in) / Bowditch, D. N. (Autor:in)

    Erscheinungsdatum :

    23.09.1958


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch