A phenomenological nozzle flow model has been developed and implemented in both the FIRE and KIVA-II codes to simulate the effects of the nozzle geometry on fuel injection and spray processes. The model takes account of the nozzle passage inlet configuration, flow losses and cavitation, the injection pressure and combustion chamber conditions and provides initial conditions for multidimensional spray modeling. The discharge coefficient of the injector, the effective injection velocity and the initial drop or injected liquid ‘blob’ sizes are calculated dynamically during the entire injection event. The model was coupled with the wave breakup model to simulate experiments of non-vaporizing sprays under diesel conditions. Good agreement was obtained in liquid penetration, spray angle and drop size (Sauter Mean Diameter). The integrated model was also used to model combustion in a Cummins single-cylinder optical engine with good agreement.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Modeling the Effects of Injector Nozzle Geometry on Diesel Sprays


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Congress & Exposition ; 1999



    Erscheinungsdatum :

    01.01.1999




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Modeling the effects of injector nozzle geometry on diesel sprays

    von Kuensberg Sarre,C. / Kong,S.C. / Reitz,R.D. et al. | Kraftfahrwesen | 1999




    Effects of different injector hole shapes on diesel sprays

    Dodge,L.G. / Ryan,T.W. / Ryan,M.G. et al. | Kraftfahrwesen | 1992


    X-Ray Absorption Measurements of Diesel Sprays and the Effects of Nozzle Geometry

    Powell, Christopher F. / Wang, Jin / Liu, Jinyuan et al. | SAE Technical Papers | 2004