In the past few years considerable improvement was made in NASA's in house boom prediction capability. As part of this improved capability, the USM3D Navier-Stokes flow solver, when combined with a suitable unstructured grid, went from accurately predicting boom signatures at 1 body length to 10 body lengths. Since that time, the research emphasis has shifted from analysis to the design of supersonic configurations with boom signature mitigation In order to design an aircraft, the techniques for accurately predicting boom and drag need to be determined. This paper compares CFD results with the wind tunnel experimental results conducted on a Gulfstream reduced boom and drag configuration. Two different wind-tunnel models were designed and tested for drag and boom data. The goal of this study was to assess USM3D capability for predicting both boom and drag characteristics. Overall, USM3D coupled with a grid that was sheared and stretched was able to reasonably predict boom signature. The computational drag polar matched the experimental results for a lift coefficient above 0.1 despite some mismatch in the predicted lift-curve slope.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    USM3D Analysis of Low Boom Configuration


    Contributors:

    Conference:

    29th AIAA Applied Aerodynamics Conference ; 2011 ; Honolulu, HI, United States


    Publication date :

    2011-06-27


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    USM3D Analysis of Low Boom Configuration (Invited)

    Carter, M. / Campbell, R. / Nayani, S. et al. | British Library Conference Proceedings | 2011


    USM3D Analysis of Low Boom Configuration (Invited)

    Carter, Melissa / Campbell, Richard / Nayani, S. | AIAA | 2011


    USM3D Simulations for Second Sonic Boom Workshop

    A. Elmiligui / M. B. Carter / S. N. Nayani et al. | NTIS | 2017


    USM3D Simulations for 2nd Sonic Boom Workshop

    Elmiligui, Alaa A. / Carter, Melissa / Cliff, Susan E. et al. | AIAA | 2017


    USM3D Simulations for Second Sonic Boom Workshop

    Elmiligui, Alaa / Carter, Melissa B. / Nayani, Sudheer N. et al. | AIAA | 2019