A highly desired capability for aircraft conceptual design is the ability to rapidly and accurately evaluate new concepts to avoid adverse trade decisions that may hinder the development process in the later stages of design. Evaluating the robustness of new low-boom concepts is important for the conceptual design of supersonic aircraft. Here, robustness means that the aircraft configuration has a low-boom ground signature at both under- and off-track locations. An integrated process for under- and off-track sonic boom analysis is developed to facilitate the design of robust low-boom supersonic aircraft. The key enabler for sonic boom analysis is accurate computational fluid dynamics solutions for off-body pressure distributions. To ensure the numerical accuracy of the off-body pressure distributions, a mesh study is performed with Cart3D (an inviscid computational fluid dynamics solver) to determine the mesh requirements for off-body computational fluid dynamics analysis. Comparisons are made between the sonic boom analysis results conducted with the Cart3D and USM3D inviscid computational fluid dynamics solvers. The variation in the ground signature that results from changes in the location of the computational fluid dynamics off-body pressure distribution is also examined. Finally, a complete under- and off-track sonic boom analysis is presented for two distinct supersonic concepts to demonstrate the capability of the integrated analysis process.


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    Title :

    Integration of Off-Track Sonic Boom Analysis for Supersonic Aircraft Conceptual Design


    Contributors:
    Ordaz, Irian (author) / Li, Wu (author)

    Published in:

    Journal of Aircraft ; 51 , 1 ; 23-28


    Publication date :

    2014-01-22


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English