The paper is concerned with the effects of cyclic variation in turbulence (expressed in terms of rms turbulent velocity) on the burn rate and subsequent cyclic variation in in-cylinder pressure derived parameters. The task has been addressed by applying a thermodynamic engine modelling approach for simulations of two very different engines; a single cylinder research engine in which sources of cyclic variation other than turbulence had been minimised and a multi-cylinder production engine. The cyclic variability in the two engines had a number of similar features; the effects of turbulence variation cycle-to-cycle proved dominant in the production engine, mixture strength secondary and prior-cycle residual concentration feedback marginal.


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    Titel :

    Study of Cyclic Variation in an SI Engine Using Quasi-Dimensional Combustion Model


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Burluka, A. A. (Autor:in) / Sheppard, C. G. W. (Autor:in) / Abdi Aghdam, E. (Autor:in) / Neumeister, J. (Autor:in) / Liu, K. (Autor:in) / Crundwell, N. (Autor:in) / Hattrell, T. (Autor:in)

    Kongress:

    SAE World Congress & Exhibition ; 2007



    Erscheinungsdatum :

    2007-04-16




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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