This paper explores the use of inverse boundary element method to identify aeroacoustic noise sources. In the proposed approach, sound pressure at a few locations out of the flow field is measured, followed by the reconstruction of acoustic particle velocity on the surface where the noise is generated. Using this reconstructed acoustic particle velocity, the acoustic response anywhere in the field, including in the flow field, can be predicted. This approach is advantageous since only a small number of measurement points are needed and can be done outside of the flow field, and a relatively fast computational time. As an example, a prediction of vortex shedding noise from a circular cylinder is presented.


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    Title :

    Identification of AeroAcoustic Noise Sources Using Inverse Boundary Element Method


    Additional title:

    Sae Technical Papers


    Contributors:
    Seybert, A. F. (author) / Herrin, D. W. (author) / Martinus, F. (author) / Tao, Z. (author)

    Conference:

    SAE 2005 Noise and Vibration Conference and Exhibition ; 2005



    Publication date :

    2005-05-16




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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