Turbocharger is one of the main parts for high power and low fuel consumption. But due to high RPM of turbocharger causes noise problem. Flow in the turbocharger is very fast and unsteady so it's very hard to estimate the noise and to reduce. So, we conducted experiment in anechoic room using airflow bench which uses compressed air as the power source. Through experiment we can identify the noise component radiated from turbocharger. As we know, tonal noise is dominant component which is related to RPM and some other noise components are confirmed. To analyze noise source and mechanism in detail, we proceed to numerical analysis. First to see the flow in the turbocharger, computational fluid dynamics(CFD) method is used. Using CFD method, we can see the flow in turbocharger and get base data for acoustic analysis. Surface pressure data resulted from CFD method is used for acoustic analogy analysis and boundary element method(BEM). Using these methods, we could understand the mechanism of airborne noise and classify the noise sources.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Control of Airflow Noise From Diesel Engine Turbocharger


    Additional title:

    Sae Technical Papers


    Contributors:
    Chung, Doyoung (author) / Lee, Duck Joo (author) / Lee, Yong Woo (author) / So, Yumi (author)

    Conference:

    SAE 2011 World Congress & Exhibition ; 2011



    Publication date :

    2011-04-12




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Control of Airflow Noise From Diesel Engine Turbocharger

    Lee, Y.W. / Lee, D.J. / So, Y. et al. | British Library Conference Proceedings | 2011


    Model-Based Electronic Diesel Engine and Turbocharger Control

    Gissinger, G.L. / Wunnennberg, J. / Frank, P.M. | SAE Technical Papers | 1990


    Model-based electronic diesel engine and turbocharger control

    Gissinger,G.L. / Frank,P.M. / Wunnenberg,J. et al. | Automotive engineering | 1990


    Numerical investigation of marine diesel engine turbocharger compressor tonal noise

    Liu, Chen / Cao, Yipeng / Liu, Yang et al. | SAGE Publications | 2020


    109 Ceramic Diesel Engine with Turbocharger

    Miyagi, Yasuo / Tsukada, Yuji / Nishikawa, Kazumi et al. | TIBKAT | 1989