A theory is developed for the stagnation point boundary layer with injection under the hypothesis that turbulence is produced at the wall by injection. From the existing experimental heat transfer rate data obtained in wind tunnels, the wall mixing length is deduced to be a product of a time constant and an injection velocity. The theory reproduces the observed increase in heat transfer rates at high injection rates. For graphite and carbon-carbon composite, the time constant is determined to be 0.0002 sec from the existing ablation data taken in an arc-jet tunnel and a balistic range.


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    Titel :

    Injection-induced turbulence in stagnation-point boundary layers


    Beteiligte:
    Park, C. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1984-02-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch