The air entrainment in a transient non-evaporating diesel spray was studied using laser Doppler velocimetry, to provide information on the mixing properties in the near-field region extending to 160 nozzle diameters (40 mm). The spray was injected into confined quiescent air at ambient pressure and temperature. The air velocity component normal to a cylindrical surface surrounding the spray was measured during the entire injection period, allowing the instantaneous air mass flow rate and the entrainment rates to be evaluated as a function of time. Two injection conditions were examined and their influence on the entrainment quantified. In the near field zone investigated, the air entrainment in transient liquid jets appears to be lower than that in steady gaseous jets, but larger than that in steady liquid jets.


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    Titel :

    LDV Characterization of Air Entrainment in Transient Diesel Sprays


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Congress & Exposition ; 1991



    Erscheinungsdatum :

    01.02.1991




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    LDV characterization of air entrainment in transient diesel sprays

    Cossali,G.E. / Brunello,G. / Coghe,A. et al. | Kraftfahrwesen | 1991


    The Effect of Injection Pressure on Air Entrainment into Transient Diesel Sprays

    Rajalingam, Babu V. / Farrell, Patrick V. | SAE Technical Papers | 1999


    The effect of injection pressure on air entrainment into transient diesel sprays

    Rajalingam,B.V. / Farrell,P.V. / Univ.of Wisconsin-Madison,US | Kraftfahrwesen | 1999


    Entrainment Characteristics of Sprays for Diesel and DISI Applications

    Abraham, John / Magi, Vinicio | SAE Technical Papers | 1998


    Entrainment characteristics of sprays for diesel and direct injection spark ignition applications

    Abraham,J. / Magi,V. / Purdue Univ.,West Lafayette,US et al. | Kraftfahrwesen | 1998