We study in detail the flow mechanism, the aeroacoustic sources and its sound propagation in turbochargers by applying numerical simulations based on an appropriate aeroacoustic formulation. Thereby, we consider Lightill’s analogy for the investigation of the different noise mechanisms. The flow inside a turbocharger is highly turbulent and compressible. Thus, all three terms of Lighthill’s tensor are examined: (1) the Reynolds stress term, (2) the excess term and (3) the viscosity term. The investigations will be performed both in time and frequency domain, and we do a detailed study of the influences of different spatial and temporal discretizations.


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    Title :

    Modelling and Numerical Simulation of the Noise Generated by Automotive Turbocharger Compressor


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

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



    Publication date :

    2020-09-30




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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