Creation of Sound Absorption by dc Airflow
作者:
Guy J. Sanders,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1958)
卷期:
Volume 30,
issue 7
页码: 670-670
ISSN:0001-4966
年代: 1958
DOI:10.1121/1.1929944
出版商: Acoustical Society of America
数据来源: AIP
摘要:
Studies have indicated that dc airflow through an orifice creates acoustic resistance. The creation of this resistance has been investigated by the measurement of the impedance of a perforated plate in an impedance tube. A method of calculating the acoustic resistance due to dc airflow has been prepared. The close agreement of theory and measurements points the way toward the use of this phenomenon for the improvement of all types of silencers where airflow is present.
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