The issue of thermal-velocity coupling is discussed in the context of vehicle thermal system analysis. Temperature variations in the bulk of the fluids caused by the vehicle engine, cooling, and exhaust system lead to variations in the density of the airflow. The density variations impact the velocity field in two ways: by introducing a driving force term explicitly to account for the effect of buoyancy force and by coupling with the other governing equations. The buoyancy force is crucial for buoyancy driven flows such as vehicle under soak condition. The vehicle thermal system analysis based on the coupled approach leads to a 15°C improvement in the prediction of the underhood thermal environment.


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    Titel :

    Thermal-velocity Coupling in Vehicle Thermal System Calculations


    Weitere Titelangaben:

    Sae Technical Papers


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

    Kongress:

    SAE 2002 World Congress & Exhibition ; 2002



    Erscheinungsdatum :

    2002-03-04




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Thermal-velocity coupling in vehicle thermal system calculations

    Yang,Z. / Bozeman,J. / Shen,F.Z. et al. | Kraftfahrwesen | 2002


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