AEROACOUSTICS AND TIME VARYING SYSTEMS

Progress in the prediction and control of flow generated noise over the past four decades is described in relation to developments in the descriptive modelling of the vortical structures in free and confined turbulence, that are responsible for its generation. Their controlling influence on sound em...

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Veröffentlicht in:	Journal of sound and vibration 1996-02, Vol.190 (3), p.345-362
1. Verfasser:	Davies, P.O.A.L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustics Aeroacoustics and atmospheric sound Aeroacoustics, atmospheric sound Exact sciences and technology Fundamental areas of phenomenology (including applications) Physics
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Beschreibung
Zusammenfassung:	Progress in the prediction and control of flow generated noise over the past four decades is described in relation to developments in the descriptive modelling of the vortical structures in free and confined turbulence, that are responsible for its generation. Their controlling influence on sound emission at low Mach numbers, with the influence of acoustic feedback on their development, are both illustrated with specific reference to jet noise, engine breathing noise, plant noise and the voicing of vowels.
ISSN:	0022-460X 1095-8568
DOI:	10.1006/jsvi.1996.0068