The sound generated by a square cylinder with a splitter plate at low Reynolds number

Ali, Msm, Doolan, CJ and Wheatley, V (2011) The sound generated by a square cylinder with a splitter plate at low Reynolds number. Journal of Sound and Vibration, 330 15: 3620-3635. doi:10.1016/j.jsv.2011.03.008


Author Ali, Msm
Doolan, CJ
Wheatley, V
Title The sound generated by a square cylinder with a splitter plate at low Reynolds number
Journal name Journal of Sound and Vibration   Check publisher's open access policy
ISSN 0022-460X
1095-8568
Publication date 2011-07-18
Sub-type Article (original research)
DOI 10.1016/j.jsv.2011.03.008
Volume 330
Issue 15
Start page 3620
End page 3635
Total pages 16
Place of publication Oxford, United Kingdom
Publisher Elsevier
Collection year 2012
Language eng
Formatted abstract
The generation of aerodynamic sound by the interaction of flow at a Reynolds number of 150 and a Mach number of 0.2 with a rigid square cylinder attached to a rigid thin flat plate is numerically investigated. When the length of the plate is varied from L=0.5D to 6D, where D is the side length of the square cylinder, the results can be grouped into three distinct regimes. For the first regime (L≲D), the sound levels decrease with increasing plate length. A 3 dB sound reduction is obtained when the length of the plate is D. For the second regime (1.25D≲L≲4.75D), the sound levels increase with increasing plate length. For the third regime (5D≲L≲6D), the sound levels decrease as the length of the plate increases but the levels are higher than for the other regimes. Results also show that the lift fluctuation is the dominant sound source. These acoustic results can be explained in terms of the fluid mechanics occurring in the near wake of the cylinder.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2012 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 12 times in Thomson Reuters Web of Science Article | Citations
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Created: Wed, 01 Jun 2011, 11:12:19 EST by Dr Vincent Wheatley on behalf of School of Mechanical and Mining Engineering