The effects of the spray impinging part on the in-cylinder airflow were numerically analyzed in the combustion chamber of the impinging diffusion direct injection diesel engine using KIVA-3 code. KIVA-3 code was enhanced to cater the impinging part as an internal obstacle by adopting the virtual droplet method, which is relatively easy to implement.Numerical result shows that the turbulence generation is promoted by the impinging part and is transformed by the squish flow into the piston cavity. The secondary flow is generated beneath the impinging part as well. The secondary flow area increases as the distance between top surface of the impinging part and bottom surface of the cylinder cover increases.


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    Title :

    Study on Impinging Diffusion DI Diesel Engine - Numerical Study on Effect of Impinging Part on In-Cylinder Flow -


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    2003 JSAE/SAE International Spring Fuels and Lubricants Meeting ; 2003



    Publication date :

    2003-05-19




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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