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    CFD for Flow Rate and Air Re-Circulation at Vehicle Idle Conditions

    CFD for Flow Rate and Air Re-Circulation at Vehicle Idle Conditions


    CFD method for the calculation of flow rate and air re-circulation at vehicle idle conditions is described. A small velocity is added to the ambient airflow in order to improve the numerical stability. The flow rate passing through the heat exchangers is insensitive to the ambient velocity, since the flow rate is largely determined by the fan operation. The air re-circulation, however, is quite sensitive to the ambient air velocity. The ambient velocity of U=-1m/s was found to be the more critical case, and is recommended for the air re-circulation analysis. The CFD analysis can also lead to design modifications improving the air re-circulation.

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    Titel :

    CFD for Flow Rate and Air Re-Circulation at Vehicle Idle Conditions

    Weitere Titelangaben:

    Sae Technical Papers

    Beteiligte:
    Shen, Fred Z. (Autor:in) / Bozeman, Jeffrey (Autor:in) / Yang, Zhigang (Autor:in)
    Kongress:

    SAE 2004 World Congress & Exhibition ; 2004

    Erschienen in:

    Sae Technical Paper Series

    Erscheinungsdatum :

    2004-03-08

    ISSN :

    2688-3627 , 0148-7191

    DOI :

    https://doi.org/10.4271/2004-01-0053

    Medientyp :

    Aufsatz (Konferenz)

    Format :

    Print

    Sprache :

    Englisch

    Schlagwörter :

    Fans , Heat exchangers , Computational fluid dynamics

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