The purpose of this paper is to clarify mechanism of the relation between exhaust pulsating flow and radiation noise,and developing simulation technology based on the fact of these phenomena. The simulation takes into account fluid flow pulsation,aero-acoustic noise sources, flow induced structural vibration as well as noise radiation in the far field. All those phenomena are directly calculated in a fully coupled manner. By applying measured values at the model inflow, accurate radiation noise from the exhaust system is obtained. Locations of noise sources as well as mechanisms of noise generation are clarified. The method enables the investigation of exhaust noise radiation at early development stages.


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    Title :

    Relation Between Exhaust Pulsating Flow and Radiation Noise: Development of Exhaust Radiation Noise Simulation Technology


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2004 World Congress & Exhibition ; 2004



    Publication date :

    2004-03-08




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Relation Between Exhaust Pulsating Flow and Radiation Noise: Development of Exhaust Radiation Noise Simulation Technology

    Sakurai, M. / Society of Automotive Engineers | British Library Conference Proceedings | 2004



    2004-01-0399 Relation Between Exhaust Pulsating Flow and Radiation Noise: Development of Exhaust Radiation Noise Simulation Technology

    Sakurai, M. / Society of Automotive Engineers | British Library Conference Proceedings | 2004



    Development of the Exhaust System Radiation Noise Simulation Technology Using Exhaust Pulsation

    Nakagawa, H. / Yoshimoto, H. / Endo, M. et al. | British Library Online Contents | 2002