Combustor internal fluctuating pressure and far-field noise generated in a YF-102 turbofan engine are investigated; combustor internal measurements are also made in a duct-component test facility operating over a range of conditions encompassing those characteristic of the aircraft engine. Although directly measured spectra for the engine and the duct-component test facility show discrepancies, the results of coherence function, transfer function and phase relationship comparisons suggest that the internal dynamics of the combustor as an acoustic source may be preserved in a component test facility.


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    Title :

    Combustor fluctuating pressure measurements in-engine and in a component test facility - A preliminary comparison


    Contributors:
    Reshotko, M. (author) / Karchmer, A. (author)

    Conference:

    Meeting of the Acoustical Society of America ; 1977 ; Miami Beach, FL


    Publication date :

    1977-12-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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