To shorten the development cycle and ensure the stability of the products, based on RNG k-e turbulence model and porous model, 3 dimension (3D) flow field Computational Fluid Dynamics (CFD) simulation is adopted to calculate the radiator group performance for a engineering vehicle being developed. Air-side flow field simulations of the radiator unit model are carried out firstly to obtain the radiators' air-side characteristics; then, the air flow and heat transfer in the whole air channel containing the radiator group are simulated simultaneously to get the inlet and outlet water temperatures of radiator group, at last, the real vehicle test is carried out to verify the simulation results. To be emphasized, in calculating the near-wall boundary layer of the radiators' unit model flow field, modified standard wall functions (MSWF) whose calculation grids is same to standard wall function (SWF) and computation accuracy of the near-wall first node velocity is higher than SWF is proposed; and compared to the test values, the radiators' inlet and outlet water temperatures obtained from the flow field simulation process using MSWF has relative error 6.4%, which can meet the accuracy requirement in engineering computation.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Performance Calculation of a Vehicle Radiator Group Based on CFD Simulation with Modified Standard Functions


    Additional title:

    Sae Technical Papers


    Contributors:
    Li, Li-fu (author) / Liu, Shui-chang (author) / ZHAO, Wan-dong (author) / Zhang, Yong (author) / Gu, Zheng-qi (author)

    Conference:

    SAE 2014 International Powertrain, Fuels & Lubricants Meeting ; 2014



    Publication date :

    2014-10-13




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    RADIATOR AND VEHICLE WITH RADIATOR

    TAKAHASHI HIROKI | European Patent Office | 2015

    Free access

    Radiator And Vehicle Equipped With The Radiator

    TAKAHASHI YUK | European Patent Office | 2015

    Free access

    RADIATOR AND VEHICLE EQUIPPED WITH THE RADIATOR

    TAKAHASHI YUKI | European Patent Office | 2015

    Free access

    VEHICLE RADIATOR COOLING SYSTEM, VEHICLE, AND VEHICLE RADIATOR COOLING METHOD

    IIDA MAKOTO | European Patent Office | 2018

    Free access

    VEHICLE RADIATOR APPARATUS

    KANEKO TAKANOBU / KITA KIYOICHI / SHOBO JUN et al. | European Patent Office | 2018

    Free access