Output details
15 - General Engineering
University of Southampton
Article title
Decomposition of modal acoustic power due to cascade–turbulence interaction
Type
D - Journal article
Title of journal
Journal of Sound and Vibration
Article number
-
Volume number
324
Issue number
1-2
First page of article
57
ISSN of journal
0022-460X
Year of publication
2009
Number of additional authors
2
Additional information
Significance of output:
One of the dominant noise sources in a modern aero engine is the broadband noise arising from the interaction between the turbulent wakes from the rotor convecting onto the stator vanes. The periodicy of the stator vanes causes sound to be radiated upstream and downstream as a series of acoustic modes. This paper presents, for the first time, a detailed investigation into
the distribution of the modal energy amongst the modes. This information is invaluable to the noise control engineer as it provides information about which modes are dominant and hence which modes must be controlled.
Interdisciplinary
-
Cross-referral requested
-
Research group
None
Proposed double-weighted
No
Double-weighted statement
-
Reserve for a double-weighted output
No
Non-English
No
English abstract
-
