The effect of piston motion on the incylinder swirling flow for a low speed, large two-stroke marine diesel engine is studied using the stereoscopic PIV technique. The measurements are conducted at 5 cross sectional planes along the cylinder length and at piston positions covering the air intake ports by 0%, 25%, 50% and 75%. The resulting swirling flow decays downstream the bulk flow direction and variation in Reynolds number has only effect in terms of magnitude. When the piston translates towards the top-dead-centre, it gradually starts closing the intake ports. The tangential velocity profile changes from Rankine/ Burgers vortex to forced vortex and axial velocity profile changes from wake-like to jet-like and then again to wake-like profile.


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    Titel :

    PIV study of the effect of piston motion on the confined swirling flow in the scavenging process in 2-stroke marine diesel engines


    Beteiligte:
    Haider, Sajjad (Autor:in) / Meyer, Knud Erik (Autor:in) / Schramm, Jesper (Autor:in) / Mayer, Stefan (Autor:in)


    Erscheinungsdatum :

    2010


    Format / Umfang :

    9 Seiten, 14 Bilder, 4 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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