The subject of this work is 3D numerical simulations of combustion and soot emissions for a passenger car diesel engine. The CFD code STAR-CD version 3.26 [1] is used to resolve the flowfield. Soot is modeled using a detailed kinetic soot model described by Mauss [2]. The model includes a detailed description of the formation of polyaromatic hydrocarbons. The coupling between the turbulent flowfield and the soot model is achieved through a flamelet library approach, with transport of the moments of the soot particle size distribution function as outlined by Wenzel et al. [3]. In this work we extended this approach by considering acetylene feedback between the soot model and the combustion model. The model was further improved by using new gas-phase kinetics and new fitting procedures for the flamelet soot library. We investigated typical part-load operating points and a good agreement with the experimental data for soot in the exhaust gas was achieved when accounting for acetylene feedback.


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    Titel :

    Soot Simulation under Diesel Engine Conditions Using a Flamelet Approach


    Weitere Titelangaben:

    Sae Int. J. Engines


    Beteiligte:
    Borg, Anders (Autor:in) / Perlman, Cathleen (Autor:in) / Krüger, Christian (Autor:in) / Mauss, Fabian (Autor:in) / Nakov, Galin (Autor:in) / Lehtiniemi, Harry (Autor:in) / Fröjd, Karin (Autor:in) / Wenzel, Paul (Autor:in) / Rawat, Rajesh (Autor:in) / Steiner, Rüdiger (Autor:in)

    Kongress:

    SAE 2009 Powertrains Fuels and Lubricants Meeting ; 2009


    Erschienen in:

    Erscheinungsdatum :

    02.11.2009


    Format / Umfang :

    16 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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