A test programme of surface pressure measurements on three car shapes at yaw angles from 0 to 30 deg in a 1/5th-scale slotted-wall test section is described. Comparison are made with corresponding 'reference' results. The low-blockage reference results were obtained in an aeronautical wind tunnel with a solid-wall test section, using the same models and under similar aerodynamic simulation conditions. The comparison verify results of our previous work (at zero yaw) in slotted-wall test sections. Extremely good vehicle surface pressure distributions can be obtained from tests at high blockage in appropriately designed slotted-wall test sections, even at high yaw angles. The important implication of the present results is that based on surface pressures, the overall size of a facility to give minimal wall-interference can be considerably reduced from the size of a solid-wall facility which would give an automotive aerodynamic simulation of comparable accuracy.


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    Title :

    Slotted-wall test section for automotive aerodynamic tests at yaw


    Additional title:

    Pruefteil mit geschlitzter Wandung fuer aerodynamische Versuche bei schraeger Anstroemung im Automobilbau


    Contributors:
    Flay, R.G. (author) / Elfstrom, G.M. (author) / Clark, P.J. (author)

    Published in:

    Publication date :

    1983


    Size :

    12 Seiten, 15 Bilder, 12 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Slotted-Wall Test Section for Automotive Aerodynamic Tests at Yaw

    Elfstrom, G. M. / Clark, P. J. F. / Flay, R. G. J. | SAE Technical Papers | 1983



    Slotted-Wall Test Section for Automotive Aerodynamik Tests at Yaw

    Flay,R.G. / Elfstrom,G.M. / Clark,P.J. et al. | Automotive engineering | 1983


    Some Principles of Automotive Aerodynamic Testing in Wind Tunnels with Examples from Slotted Wall Test Section Facilities

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