The PCBoom suite of tools was used to model atmospheric propagation cases and the optional focus case as part of the Third AIAA Sonic Boom Prediction Workshop. The Focused Boom module FOBoom version 7.1.0 was used to complete ray tracing calculations using computational fluid dynamics pressure data as the source. Lossy propagation was modeled using PCBoom’s interactive Burgers equation solver, PCBurg, and final results were obtained with the batch analysis tool HeadlessBurgers. The effects of sampling rate, time-step factor, and other factors on model results were investigated. Lateral cutoff angles were refined by finely incrementing azimuth angles and examining propagation paths and ground metrics. The optional focus case, in which the vehicle trajectory included acceleration, was also modeled using PCBoom. An interactive program (RayCau) was used to generate ray diagrams showing the caustic and the delta-tangent ray to confirm the focus condition and to facilitate identification of the ray and signature for input to the lossy nonlinear Tricomi equation (LNTE) solver. PCBurg was used to obtain the lossy signature at the delta tangent position. Finally, the LNTE module was used to compute signatures in the vicinity of the focal zone.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    PCBoom Propagation Modeling for the Third AIAA Sonic Boom Prediction Workshop


    Contributors:

    Published in:

    Journal of Aircraft ; 59 , 3 ; 612-623


    Publication date :

    2022-05-01




    Type of media :

    Conference paper , Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    SONIC BOOM PREDICTION WORKSHOP 3: PROPAGATION MODELING USING PCBOOM

    Downs, Robert / Kaye, Sophie / Page, Juliet | TIBKAT | 2020


    Sonic Boom Prediction Workshop 3: Propagation Modeling Using PCBoom

    Downs, Robert / Kaye, Sophie / Page, Juliet | AIAA | 2020


    sBOOM Propagation for the Third AIAA Sonic Boom Prediction Workshop

    Aftosmis, Michael J. / Spurlock, Wade M. | NTRS | 2020


    Summary of Propagation Cases of the Third AIAA Sonic Boom Prediction Workshop

    Rallabhandi, Sriram K. / Loubeau, Alexandra | AIAA | 2021


    SUMMARY OF PROPAGATION CASES OF THE THIRD AIAA SONIC BOOM PREDICTION WORKSHOP

    Rallabhandi, Sriram K. / Loubeau, Alexandra | TIBKAT | 2021