An exhaust nozzle for a jet aircraft providing jet noise suppression is described. The nozzle includes a number of coaxial airfoil ring segments which are spaced serially along the longitudinal axis of the nozzle to define annular coaxial channels. The diameters of the segments progressively decrease downstream along this axis. The radial depths of the channels are small compared with the axial distance between adjacent noncoplanar channel exits, so noise is emitted nonsimultaneously from the channel exits as a series of weakened pulses staggered in time. The boattail angles of the outer surfaces of the ring airfoil segments increase in magnitude with increasing distance downstream to reduce drag. (Author)


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    Titel :

    Cascade Plug Nozzle


    Beteiligte:
    B. W. Corson (Autor:in)

    Erscheinungsdatum :

    1973


    Format / Umfang :

    21 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Cascade Plug Nozzle

    B. W. Corson | NTIS | 1974


    Plug-nozzle flexibility

    Berman, K. / Neuffer, B. | Engineering Index Backfile | 1960


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