The efficiency of combustion and the production of pollutants in the internal combustion engine are strongly dependent on the turbulent flow field in the engine cylinder. In most engines, turbulence is almost exclusively generated during the induction stroke. A water analog was used to visualize and study this process for a simple geometry cylinder.The flow field, during the induction process, was observed to be structured and highly repeatable from cycle to cycle. The structure was comprised of two ring vortices, of concentrated vorticity, which were of the same scale as the engine cylinder. A detailed study of the characteristics of the vortex rings was carried out for the case of an axisymmetric cylinder geometry. Inviscid scaling laws were obtained from these results that describe the development and stability of the structured flow field.


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    Title :

    Flow Visualization Study of the Intake Process of an Internal Combustion Engine


    Additional title:

    Sae Technical Papers


    Contributors:
    Ekchian, A. (author) / Hoult, D. P. (author)

    Conference:

    1979 Automotive Engineering Congress and Exposition ; 1979



    Publication date :

    1979-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Flow visualization study of the intake process of an internal combustion engine

    Ekchian,A. / Hoult,D.P. / Massachusetts Inst.of Technol. | Automotive engineering | 1979


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