A method of controlling plume exhaust heat and/or noise radiation from a turbofan engine assembly having a short nacelle. A mixer duct shell is supported such that a downstream edge of the short nacelle overlays an upstream portion of the mixer duct shell. A first portion of fan exhaust may be routed through the mixer duct shell between its inner surface and an outer surface of a core engine shroud. A second portion of fan exhaust may be routed over an outer surface of the mixer duct shell. At least one of the inner surface and an outer surface of the mixer duct shell may have an acoustic lining including a honeycomb core structure.


    Access

    Download


    Export, share and cite



    Title :

    Internal mixing of a portion of fan exhaust flow and full core exhaust flow in aircraft turbofan engines


    Contributors:

    Publication date :

    2018-10-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F02K JET-PROPULSION PLANTS , Strahltriebwerke / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



    Internal mixing of a portion of fan exhaust flow and full core exhaust flow in aircraft turbofan engines

    MOORE MATTHEW D / MARQUES EDWARD C | European Patent Office | 2021

    Free access

    Turbofan mixed flow exhaust system

    Dusa, Donald J. / Kuchar, Andrew P. / Faust, Guy K. | NTRS | 1986


    Experimental Verification of the Exhaust Mixing Process in Turbofan Engines

    Barta, A. B. / Vittal, B. R. / Dalton, W. N. et al. | British Library Conference Proceedings | 1997


    Fan Flow Deflection in Simulated Turbofan Exhaust

    Dimitri Papamoschou | AIAA | 2006


    Commercial Turbofan Engine Exhaust Nozzle Flow Analyses

    Abdol-Hamid, K.S. | Online Contents | 1993