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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    Title :

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


    Contributors:
    Cliff, Susan E. (author) / Elmiligui, A. (author) / Aftosmis, M. (author) / Morgenstern, J. (author) / Durston, D. (author) / Thomas, S. (author)

    Conference:

    International Conference on Computational Fluid Dynamics (ICCFD7) ; 2012 ; Big Island, HI, United States


    Publication date :

    2012-07-09


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :




    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. / MORRIS, O. | AIAA | 1966


    Wind-tunnel sonic-boom testing techniques.

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