The effects of plate angle on acoustic waves from a supersonic jet impinging on an inclined flat plate at angles of 30, 45, and 60 deg are numerically investigated. Three-dimensional compressible Navier–Stokes equations are solved using the modified weighted compact nonlinear scheme. Similar to previous studies, the acoustic fields indicate that there are at least three types of acoustic waves in all of the cases considered herein: 1) Mach waves generated from the shear layer of the main jet, 2) acoustic waves generated from the impingement region, and 3) Mach waves generated from the shear layer of the supersonic flow downstream of the jet impingement. Acoustic waves (2) are generated from two different acoustic sources: 1) the interaction between the plate shock wave and the shear layer, and 2) the interaction between the bubble-induced shock waves and the shear layer. The frequency characteristics of acoustic waves are related to the thickness of the shear layer in the impingement region. The results of the present study indicate the source location and the characteristics of acoustic waves (2) for various flat-plate angles.


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    Titel :

    Plate-Angle Effects on Acoustic Waves from Supersonic Jets Impinging on Inclined Plates



    Erschienen in:

    Erscheinungsdatum :

    2016




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :

    Klassifikation :

    BKL:    55.50 Luftfahrzeugtechnik / 55.60 Raumfahrttechnik / 55.60 / 50.93 / 55.50 / 50.93 Weltraumforschung
    Lokalklassifikation TIB:    770/7040



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    ACOUSTIC WAVES FROM A SUPERSONIC JET IMPINGING ON AN INCLINED FLAT PLATE

    Nonomura, T. / Goto, Y. / Fujii, K. et al. | British Library Conference Proceedings | 2010


    Effects of Plate Angles on Acoustic Waves from a Supersonic Jet Impinging on an Inclined Flat Plate

    Honda, Hironori / Nonomura, Taku / Fujii, Kozo et al. | AIAA | 2011


    EFFECTS OF PLATE ANGLES ON ACOUSTIC WAVES FROM A SUPERSONIC JET IMPINGING ON AN INCLINED FLAT PLATE

    Honda, H. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2011