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The propagation of low‐frequency sound in a two‐dimensional duct system with T joints and right angle bends: Theory and experiment

 

作者: Jan C. Bruggeman,  

 

期刊: The Journal of the Acoustical Society of America  （AIP Available online 1987）
卷期: Volume 82, issue 3  

页码: 1045-1051

 

ISSN:0001-4966

 

年代: 1987

 

DOI:10.1121/1.395379

 

出版商: Acoustical Society of America

 

关键词: DUCTS;TWO−DIMENSIONAL SYSTEMS;WAVE PROPAGATION;SOUND WAVES;SOUND PRESSURE;GREEN FUNCTION;REFLECTION;TRANSMISSION;PLANE WAVES

 

数据来源: AIP

 

摘要:

The method of matched asymptotic expansions is used to determine a low‐frequency approximation of the acoustic pressure in a waveguide system with a T joint. The low‐frequency approximation is compared with (a) experimental data of Lippert [Acustica4, 313–319 (1954)]; (b) new experimental data; and (c) the first approximation of the mode expansion proposed by Miles [J. Acoust. Soc. Am.17, 259–272 (1946)].

 

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