Jet noise spectra obtained at static conditions from an acoustic wind tunnel and an outdoor facility are compared. Data curves are presented for (1) the effect of relative velocity on OASPL directivity (all configurations); (2) the effect of relative velocity on noise spectra (all configurations); (3) the effect of velocity on PNL directivity (coannular nozzle configurations); (4) nozzle exhaust plume velocity profiles; and (5) the effect of relative velocity on aerodynamic performance.


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    Title :

    Flight effects on the aerodynamic and acoustic characteristics of inverted profile coannular nozzles, volume 1


    Contributors:

    Publication date :

    1978-06-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English


    Keywords :