A production Navier-Stokes/Euler CFD code, NASTD, developed for aircraft flowfield analysis has been modified to analyze acoustic fields associated with propulsion exhaust systems. The modified code has been applied to the Category 5 nozzle problem using six different spatial discretization schemes combined with a third-order, compact storage Runge-Kutta time integration. NASTD was found capable of tracking pressure disturbances normalized by the freestream value of order 10(exp -6), even with lower-order schemes, for the benchmark problem.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Comparison of spatial numerical operators for duct-nozzle acoustics


    Contributors:
    Cain, A. B. (author) / Bower, W. W. (author)


    Publication date :

    1995-05-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Duct Acoustics: Panel Discussion: Duct Acoustics

    Nagamatsu, Henry T. | AIAA | 1976



    Duct Acoustics Overview

    Michael Jones | NTRS | 2010


    Panel Discussion: Duct Acoustics

    Schwartz, Ira R. / Nagamatsu, Henry T. / O'Keefe, Jack V. | AIAA | 1975


    Numerical Investigations of the Acoustics of a Coaxial Nozzle

    Mihaescu, M. / Szasz, R.-Z. / Fuchs, L. et al. | British Library Conference Proceedings | 2005