The objective of this work was to investigate the influence of changes in geometry of a wall-mounted square cylinder in crossflow on the generated aerodynamic noise. The flowfield and acoustic field of several geometries are obtained and their interaction is analyzed. The results of the subset of geometries investigated indicate that the reduction in turbulent kinetic energy does not necessarily also lead to a reduction in radiated noise. Reducing the fluctuations of the stagnation point in front of the cylinder, maintaining a fixed separation line, and reducing the symmetry of the vortex street and its stability seem to be effective measures for reducing aerodynamic noise, among other known approaches.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Flow-induced sound of wall-mounted cylinders with different geometries


    Additional title:

    Strömungsinduzierter Schall in Wand-montierten Zylindern mit unterschiedlichen Geometrien


    Contributors:

    Published in:

    AIAA Journal ; 46 , 9 ; 2265-2281


    Publication date :

    2008


    Size :

    17 Seiten, 57 Bilder, 2 Tabellen, 31 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Flow-Induced Sound of Wall-Mounted Cylinders with Different Geometries

    Becker, Stefan / Hahn, Christian / Kaltenbacher, Manfred et al. | AIAA | 2008


    Flow-Induced Sound of Wall-Mounted Finite Length Cylinders

    Moreau, Danielle J. / Doolan, Con J. | AIAA | 2013



    POD Analysis in the Wake of Wall-Mounted Cylinders

    Fanini Leite, Henrique / Abreu, Leandra I. / Avelar, Ana Cristina et al. | AIAA | 2017