Reprint of: A review of CAA for fan duct propagation and radiation, with application to liner optimisation

Autor:	I.M. Achunche, E.P. Deane, Matthew Kewin, R.J. Astley, Prateek Mustafi, Rie Sugimoto
Rok vydání:	2010
Předmět:	Engineering Computational Aero-acoustics noise reduction business.industry Nacelle optimisation Acoustics turbofan ducts Sound field General Medicine Turbofan Acoustic propagation Duct (flow) acoustic liners business
Zdroj:	Procedia IUTAM. 1:143-152
ISSN:	2210-9838
DOI:	10.1016/j.piutam.2010.10.016
Popis:	This article reviews the application of Computational Aero-Acoustics (CAA) to the prediction of acoustic propagation in turbofan ducts. The challenge of resolving the radiated sound field for realistic nacelle geometries is discussed and evidence is presented to indicate that current CAA is able to represent the effect of in-duct liners on far-field measured rig and engine data. Two approaches are presented for incorporating CAA predictions within liner optimisation schemes for a turbofan intake.
Databáze:	OpenAIRE
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