An innovative pressure rail concept for wind tunnel sonic boom testing of modern aircraft configurations with very low overpressures was designed with an adjoint-based solution-adapted Cartesian grid method. The computational method requires accurate free-air calculations of a test article as well as solutions modeling the influence of rail and tunnel walls. Specialized grids for accurate Euler and Navier-Stokes sonic boom computations were used on several test articles including complete aircraft models with flow-through nacelles. The computed pressure signatures are compared with recent results from the NASA 9- x 7-foot Supersonic Wind Tunnel using the advanced rail design.


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    Titel :

    Design of Rail Instrumentation for Wind Tunnel Sonic Boom Measurements and Computational-Experimental Comparisons


    Beteiligte:
    S. E. Cliff (Autor:in) / A. Elmiligui (Autor:in) / M. Aftosmis (Autor:in) / J. Morgenstern (Autor:in) / D. Durston (Autor:in)

    Erscheinungsdatum :

    2012


    Format / Umfang :

    2 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch






    The 9x7 Wind Tunnel Sonic Boom Measurements and Computational-Experimental Comparisons

    Cliff, Susan E. / Elmiligui, Alaa / Durston, Don | NTRS | 2012


    Wind-tunnel sonic-boom testing techniques.

    CARLSON, H. W. / MORRIS, O. A. | AIAA | 1967


    Wind-tunnel sonic-boom testing techniques

    CARLSON, H. / MORRIS, O. | AIAA | 1966