An experimental investigation was conducted to identify the main structures in the near wake of an isolated Formula One wheel rotating in ground contact. A 50 percent-scale isolated wheel assembly, geometrically similar to the configuration mounted on a Formula One racing car, was tested in a closed-return three-quarter open-jet wind tunnel. The test Reynolds number, based on wheel diameter was 6.8x105. Using laser doppler anemometry, three velocity components were measured with a total of 1966 data points across four planes and within one diameter downstream of the wheel axis. Based on analysis of these data, the main characteristics of the near-wake of an isolated wheel rotating in ground contact are presented. A revised model of the trailing vortex system induced in the wake of such a wheel is proposed, which clarifies the contradictory ones published in the literature to date.


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    Title :

    Laser Doppler anemometry measurements in the near-wake of an isolated Formula One wheel


    Contributors:

    Published in:

    Experiments in Fluids ; 42 , 5 ; 671-681


    Publication date :

    2007


    Size :

    11 Seiten, 9 Bilder, 36 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English