23rd Congress of International Council of the Aeronautical Sciences, 8-13 September, 2002, Toronto, Canada
Paper ICAS 2002-2.9.1

ON TRANSMISSION OF SOUND ACROSS A NON ISOTHERMAL BOUNDARY LAYER

L. M. B. C. Campos, M. H. Kobayashi
IST, Portugal

Keywords: aeroaccoustics, non-isothermal boundary-layer

The present paper concerns an homenergetic mean flow which allows for non-uniform sound speed in a non-isothermal unidirectional shear. The sound field due to a time harmonic line source is considered outside the homenergetic shear flow and compared with the homentropic shear flow for sound incident on a boundary layer over a rigid wall.

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