This paper describes the possibility to resolve aeroacoustic feedback with a commercial 2nd/3rd order finite volume CFD code [1]. After a first comparison to a NACA 0012 test case, tonal noise components of a realistic automotive side view mirror are validated with in-house wind tunnel measurements. A zonal RANS/LES approach is used to ensure a realistic flow around the exterior side mirror mounted on a Mercedes-Benz passenger car. The provided compressible large eddy simulations are using non-reflecting boundary conditions in combination with a sponge zone approach to reduce hydrodynamic fluctuations and are in great accordance to measurements. The possibility of localizing and investigating the underlying feedback mechanism enables the chance for a targeted design of different appropriate remedies, which are finally confirmed by means of experimental comparison.


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    Titel :

    Numerical Investigation of Tonal Noise at Automotive Side Mirrors due to Aeroacoustic Feedback


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Schell, Alexander (Autor:in) / Eiselt, Mark (Autor:in)

    Kongress:

    11th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference ; 2020



    Erscheinungsdatum :

    30.09.2020




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Numerical Investigation of Tonal Noise at Automotive Side Mirrors due to Aeroacoustic Feedback

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    Numerical Investigation of Tonal Noise at Automotive Side Mirrors due to Aeroacoustic Feedback

    Schell, Alexander / Eiselt, Mark | British Library Conference Proceedings | 2020



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