Simple noninvasive acoustical technique effective in measurement of instability waves, which precede onset of turbulence in laminar boundary layer flows. Microphone mounted below surface detects pressure waves indicative of instabilities in laminar flow. Relatively insensitive to long-wavelength background noise. Such measurements important in research on aerodynamic flows and potential applications in control of turbulence (with consequent reduction of drag) on aircraft.


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    Titel :

    Microphone Detects Waves In Laminar Boundary-Layer Flow


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.11.1990



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


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    Unsteady laminar boundary-layer flow

    Moore, Franklin K. | TIBKAT | 1951


    Development of Knocking Detects System Using a Microphone

    Kasahara, Taro / Otaka, Masayoshi / Komaba, Kenichi | British Library Online Contents | 2016