Document Detail


Experimental study of the influence of low frequency flow modulation on the whistling behavior of a corrugated pipe.
MedLine Citation:
PMID:  21973339     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
It is well known that airflow in a corrugated pipe can excite whistling at the frequencies of the pipe's longitudinal acoustic modes. This short contribution reports on the results of experiments where a low frequency, oscillating flow with velocity magnitudes of the same order as the airflow has been added. Depending on the oscillation strength, it has been found that this flow may silence the pipe or move the whistling to higher harmonics. It is also shown that the low frequency oscillation itself may excite higher frequency whistling sounds in the pipe.
Authors:
Ulf R Kristiansen; Pierre-Olivier Mattei; Cedric Pinhede; Muriel Amielh
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  130     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1851     Citation Subset:  IM    
Affiliation:
Acoustics Research Centre, Department of Electronics and Telecommunications, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
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