The test gas for the Langley Pilot Transonic Cryogenic Tunnel is nitrogen. Results from analytical and experimental studies that have verified cryogenic nitrogen as an acceptable test gas are reviewed. Real-gas isentropic and normal-shock flow solutions for nitrogen are compared to the ideal diatomic gas solutions. Experimental data demonstrate that for temperatures above the liquefaction boundaries there are no significant real-gas effects on two-dimensional airfoil pressure distributions. Results of studies to determine the minimum operating temperatures while avoiding appreciable effects due to liquefaction are included.


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    Titel :

    Cryogenic nitrogen as a transonic wind-tunnel test gas


    Beteiligte:
    Adcock, J. B. (Autor:in) / Kilgore, R. A. (Autor:in) / Ray, E. J. (Autor:in)

    Kongress:

    American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting ; 1975 ; Pasadena, CA


    Erscheinungsdatum :

    01.01.1975


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Cryogenic nitrogen as a transonic wind-tunnel test gas

    ADCOCK, J. / KILGORE, R. / RAY, E. | AIAA | 1975


    NACA transonic wind tunnel test sections

    Wright, Ray H. ;Ward, Vernon G. | SLUB | 1956


    NACA transonic wind-tunnel test sections

    Wright, R.H. / Ward, V.G. | Engineering Index Backfile | 1955


    NACA transonic wind-tunnel test sections

    Wright, Ray H. / Ward, Vernon G. | TIBKAT | 1955


    The cryogenic transonic wind tunnel for high Reynolds number research

    Kilgore, R. A. / Adcock, J. B. / Ray, E. J. | NTRS | 1976