A scale model performance test was conducted as part of the NASA Energy Efficient Engine (E3) Program, to investigate the geometric variables that influence the aerodynamic design of exhaust system mixers for high-bypass, mixed-flow engines. Mixer configuration variables included lobe number, penetration and perimeter, as well as several cutback mixer geometries. Mixing effectiveness and mixer pressure loss were determined using measured thrust and nozzle exit total pressure and temperature surveys. Results provide a data base to aid the analysis and design development of the E3 mixed-flow exhaust system.


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    Title :

    Scale model performance test investigation of exhaust system mixers for an Energy Efficient Engine /E3/ propulsion system


    Contributors:

    Conference:

    Aerospace Sciences Meeting ; 1980 ; Pasadena, CA


    Publication date :

    1980-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English