Detailed wake surveys were performed with a 1/8 th scale model, hatchback car in a low-speed, wind tunnel. The tests were conducted at a freestream velocity of 20 m/s giving a Reynolds number of 6.0 x 105 based on the model length. PIV was used to obtain cross-flow velocities at four wake survey locations. At one wake position the effect of hatchback geometry was investigated. Using a wake integration technique, lift and induced drag distributions along the model width, total lift and induced drag acting on the model were obtained using flow field data. The induced lift and drag coefficients were found to decrease downstream of the model due to viscous dissipation. A hatchback angle of 30 degree was found to produce the greatest induced drag. The instantaneous wake structure of hatchback cars was found to be asymmetric and was not adequately described as consisting of counter-rotating C-post vortices, a concept produced by earlier time averaged data obtained elsewhere.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Wake studies of a model passenger car using PIV


    Additional title:

    Untersuchung der Nachlaufströmung an einem Modell eines Personenwagens durch PIV


    Contributors:
    McCutcheon, G. (author) / McColgan, A.H. (author) / Grant, I. (author) / Hurst, D. (author)


    Publication date :

    2002


    Size :

    10 Seiten, 12 Bilder, 1 Tabelle, 20 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Wake Studies of a Model Passenger Car Using PIV

    McCutcheon, G. / McColgan, A. H. / Grant, I. et al. | British Library Conference Proceedings | 2002


    Wake Studies of a Model Passenger Car Using PIV

    McColgan, A. H. / Hurst, D. / McCutcheon, G. et al. | SAE Technical Papers | 2002


    PASSENGER WAKE-UP APPARATUS

    NAGASAWA ISAMU | European Patent Office | 2019

    Free access

    Passenger wake-up apparatus

    NAGASAWA ISAMU | European Patent Office | 2019

    Free access

    Unsteady pressure analysis of the wake flow behind a passenger car model

    Ishihara,Y. / Takagi,M. / Nissan Motor,JP | Automotive engineering | 1999