An investigation was conducted of isolated convergent-divergent nozzles to determine the effect of several design parameters on nozzle performance. Tests were conducted using high pressure air for propulsion simulation at Mach numbers from 0.60 to 2.86 at an angle of attack of 0 deg and at nozzle pressure ratios from jet off to 46.0. Three power settings (dry, partial afterburning, and maximum afterburning), three nozzle lengths, and nozzle expansion ratios from 1.22 to 2.24 were investigated. In addition, the effects of nozzle throat radius and a cusp in the external boattail geometry were studied. The results of this study indicate that, for nozzles operating near design conditions, increasing nozzle length increases nozzle thrust-minus-drag performance. Nozzle throat radius and an external boattail cusp had negligible effects on nozzle drag or internal performance.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Investigation of convergent-divergent nozzles applicable to reduced-power supersonic cruise aircraft


    Contributors:
    Berrier, B. L. (author) / Re, R. J. (author)

    Publication date :

    1980-12-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English


    Keywords :