Elliposidal acoustic mirror used to measure sound emitted at discrete points in burning turbulent jets. Mirror deemphasizes sources close to target source and excludes sources far from target. At acoustic frequency of 20 kHz, mirror resolves sound from region 1.25 cm wide. Currently used by NASA for research on jet flames. Produces clearly identifiable and measurable variation of acoustic spectral intensities along length of flame. Utilized in variety of monitoring or control systems involving flames or other reacting flows.


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    Titel :

    Acoustic Imaging of Combustion Noise


    Beteiligte:
    Ramohalli, K. N. (Autor:in) / Seshan, P. K. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.12.1984



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



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    Mahmoudi, Y. / Dowling, A. P. / Stow, S. R. | AIAA | 2017