The wake of a moving vehicle was stimulated using a wind tunnel with a moving floor. The vehicle models, both scale and block-shaped, were held in a fixed position while the floor moved at the upstream air speed. This simulates an automobile traveling on a straight highway in still ambient air. Vertical and lateral profiles of mean and fluctuating velocities and mean tracer concentration were obtained. Profiles were taken at distances of 15-60 model heights downstream. Two exhaust source positions were used: at the center of the rear of the vehicle and on the side just behind the rear wheel. It was found that the scale vehicles induce a pair of vortices in the wake that modify the velocity and concentration patterns in a minor way from that of the block car.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Turbulent Diffusion Behind Vehicles: Experimentally Determined Influence of Vortex Pair in Vehicle Wake


    Beteiligte:
    R. S. Thompson (Autor:in) / R. E. Eskridge (Autor:in)

    Erscheinungsdatum :

    1987


    Format / Umfang :

    8 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Vortex Wake Behind a Helicopter

    A. Larin | NTIS | 1974


    Wake vortex mechanisms behind semi-porous cylinders

    Aguiar, Joao / Birch, David M. / Pelacci, Manuel | AIAA | 2018


    Far Vortex Wake Behind a Turbojet Aircraft

    Ginevsky, A.S. / Zhelannikov, A.I. | Springer Verlag | 2009


    Wake behind oscillating vehicle

    Zeiberg, S.L. | Engineering Index Backfile | 1962


    Flow Survey of the Vortex Wake behind Wings

    Z. El-Ramly / W. J. Rainbird | AIAA | 1977