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.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Microphone Detects Waves In Laminar Boundary-Layer Flow


    Contributors:

    Published in:

    Publication date :

    1990-11-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Microphone Detects Boiler-Tube Leaks

    Parthasarathy, S. P. | NTRS | 1985


    Laminar Boundary Layer in Noncentered Unsteady Waves

    J. GORDON MALL / G. SRINASAN / AND JAIPAL S. RATHI | AIAA | 1973


    Compressible laminar boundary-layer flow

    Carter, J. E. | NTRS | 1978


    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