Using existing aeroacoustic wave equations, we propose a general hybrid aeroacoustic method, based on compressible flow data. By applying the Helmholtz-Hodge decomposition on arbitrary domains, we extract the incompressible projection (non-radiating base flow) of the compressible flow velocity by solving the vector valued curl-curl equation with the vorticity as forcing term. The resulting vortical flow part is used for computing the acoustic source term. This method maintains the favorable properties of the hybrid aeroacoustic method, while still considering acoustic feedback on the flow field.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Computational Aeroacoustics Based on a Helmholtz-Hodge Decomposition


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    10th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference ; 2018



    Publication date :

    2018-06-13




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Computational Aeroacoustics Based on a Helmholtz-Hodge Decomposition

    Kaltenbacher, Manfred / Schoder, Stefan | British Library Conference Proceedings | 2018


    Heterogeneous Domain Decomposition for Computational Aeroacoustics

    Jens Utzmann / Thomas Schwartzkopff / Michael Dumbser et al. | AIAA | 2006


    Computational Aeroacoustics

    Bose, Tarit | Springer Verlag | 2012


    Computational Aeroacoustics

    Tucker, P. G. | Springer Verlag | 2014