Hydrodynamic instabilities and surface waves in a flow over an impedance wall

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

A 2-D analysis is made of the surface waves in a subsonic compressible uniform mean flow along an impedance wall. It is found that a maximum of four surface waves is possible. The regions of existence in complex impedance and wave number planes are given. One wave is found to travel upstream, while the others, one of which is an instability, propagate downstream. A Wiener-Hopf solution of plane wave scattering at a hard/soft discontinuity of the wall impedance is constructed, in which the instability wave provides the additional degree of freedom to satisfy the Kutta condition at the impedance jump. The present waves are limiting forms of certain irregular acoustic duct modes.
Originele taal-2Engels
TitelAero- And Hydro-acoustics : IUTAM Symposium Ecole Centrale de Lyon. 3-6 July, 1985
RedacteurenG. Comte-Bellot, John Ffowcs-Williams
Plaats van productieHeidelberg
UitgeverijSpringer
Pagina's483-490
ISBN van elektronische versie978-3-642-82758-7
ISBN van geprinte versie978-3-642-82760-0
DOI's
StatusGepubliceerd - 1986
Evenement1985 IUTAM Symposium Aero- And Hydro-acoustics, July 3-6, 1985, Lyon, France - Ecole Centrale de Lyon, Lyon, Frankrijk
Duur: 3 jul 19856 jul 1985

Congres

Congres1985 IUTAM Symposium Aero- And Hydro-acoustics, July 3-6, 1985, Lyon, France
LandFrankrijk
StadLyon
Periode3/07/856/07/85

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  • Citeer dit

    Rienstra, S. W. (1986). Hydrodynamic instabilities and surface waves in a flow over an impedance wall. In G. Comte-Bellot, & J. Ffowcs-Williams (editors), Aero- And Hydro-acoustics : IUTAM Symposium Ecole Centrale de Lyon. 3-6 July, 1985 (blz. 483-490). Springer. https://doi.org/10.1007/978-3-642-82758-7_44