Time-resolved and local ambient gas entrainment processes in intermittent gas jets with a range of injection conditions were evaluated by a LIFA (Laser-Induced Fluorescence of Ambient gas) technique. The gas injection conditions tested were: mean discharge velocity, um; mean discharge turbulence intensity, u′m; kinematic viscosity of the gas jet, ν; specific gravity of the gas jet, ρj; and of the ambient gas, ρa. Experimental results showed that the entrainment of jets are enhanced with higher eddy kinematic viscosity, νt, measured by a hot wire anemometer. In conclusion, the mean jet concentration was approximated with only one parameter, (ρj/ρa)D2/[(ν+νt)Δt].


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    Titel :

    Analysis of Ambient Gas Entrainment Processes in Intermittent Gas Jets by LIFA Technique


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Kido, Akihiro (Autor:in) / Ogawa, Hideyuki (Autor:in) / Ueno, Masaki (Autor:in) / Miyamoto, Noboru (Autor:in)

    Kongress:

    International Congress & Exposition ; 1996



    Erscheinungsdatum :

    1996-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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