Determination of physical nature of compressibility burble from simultaneous air-flow photographs and pressure-distribution measurements of NACA 4412 airfoil at high speeds; pressure-measurement results and typical Schlieren photographs; source of increased drag is compression shock that occurs, excess drag being due to conversion of considerable amount of air-stream kinetic energy into heat at compression shock.


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    Titel :

    Compressibility burble


    Weitere Titelangaben:

    Nat Advisory Committee Aeronautics -- Tech Note


    Beteiligte:
    Stack, J. (Autor:in)


    Erscheinungsdatum :

    1935


    Format / Umfang :

    10 pages


    Anmerkungen:

    11 Supp Sheets, Bibliography


    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :