Acoustic resonance in aeroengine intake ducts
UNSPECIFIED. (2004) Acoustic resonance in aeroengine intake ducts. JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME, 126 (3). pp. 432-441. ISSN 0889-504XFull text not available from this repository.
Official URL: http://dx.doi.org/10.1115/1.1776586
A theoretical model is used to investigate the effect of geometry, flow conditions and acoustic lining on the occurrence of acoustic resonance within aeroengine ducts. Semi-analytical methods are used to demonstrate that two types of acoustic resonance can be excited. The first is an intake resonance arising due to axial variation of the intake shape and the presence of swirling flow downstream of the rotor. The second occurs as a result of mode trapping between the rotor and stator. Such resonance phenomena may be relevant to the destabilization of the fan and the onset of flutter and rotating stall.
|Item Type:||Journal Article|
|Subjects:||T Technology > TJ Mechanical engineering and machinery|
|Journal or Publication Title:||JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME|
|Publisher:||ASME-AMER SOC MECHANICAL ENG|
|Official Date:||July 2004|
|Number of Pages:||10|
|Page Range:||pp. 432-441|
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