To clarify the fuel spray formation process for a swirl-type injector, numerical analyses using both VOF (Volume Of Fluid) model and DDM (Discrete Droplet Model) method are carried out. VOF model is used to simulate the two-phase flow inside the injector and also the liquid film formation process outside the nozzle, while DDM is used to simulate a free fuel spray in a constant-volume chamber using initial conditions deduced by empirical equations or calculated results of VOF model. As a result, fairly good agreement of spray characteristics, such as the spray shape and the tip penetration between the experiment and calculation can be obtained by adopting initial conditions calculated by VOF model. However, improvements of droplet breakup models and of two-phase flow calculation method would be required to achieve quantitatively good agreement.


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    Titel :

    Experimentally Evaluated Spray Model for a Swirl-Type Injector


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Takagi, Masahide (Autor:in) / Hu, Xiao (Autor:in) / Moriyoshi, Yasuo (Autor:in)

    Kongress:

    SAE Powertrain & Fluid Systems Conference & Exhibition ; 2002



    Erscheinungsdatum :

    2002-10-21




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


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    Hu, X. / Takagi, M. / Moriyoshi, Y. et al. | British Library Conference Proceedings | 2001



    Transient Spray Cone Angles in pressure-Swirl Injector Sprays

    Snyder, J. A. / Grover, R. O. / Sick, V. et al. | British Library Conference Proceedings | 2004


    Spray characteristics of swirl coaxial injector and its modeling

    Inamura, Takao / Miyata, Kei / Tamura, Hiroshi et al. | AIAA | 2001