The effect of the sidewall boundary layer on flow in two-dimensional wind tunnels is determined. The small-disturbance and isentropic approximations are made, and the sidewall-boundary-layer dynamics are modeled with the von Karman momentum-in momentum-integral equation. The effects of the edge-velocity-gradient term in the sidewall momentum integral, which is usually dominant near the model, and the compressibility term are shown to be similar. It is shown that the effect of sidewall suction around the model is not similar to two-dimensional flow. Comparisons with experiment are made to verify the similarity rule. (DePo)


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    Title :

    A similarity rule for compressibility and sidewall-boundary-layer effects in two-dimensional wind tunnels


    Additional title:

    Eine Aehnlichkeitsregel fuer die Kompressibilitaet und die Seitenwand-Grenzschichtstroemung in zweidimensionalen Windkanaelen


    Contributors:

    Published in:

    AIAA-Papers ; Jan ; 1-7


    Publication date :

    1979


    Size :

    7 Seiten, 7 Bilder, 5 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English