Convection and Refraction in Jet Noise
作者:
H. S. Ribner,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1974)
卷期:
Volume 55,
issue 2
页码: 399-399
ISSN:0001-4966
年代: 1974
DOI:10.1121/1.3437212
出版商: Acoustical Society of America
数据来源: AIP
摘要:
Lighthill's theory of jet noise employs a nonconvected wave equation forced by a certain source term. In its exact form this term accounts fully for the co‐moving fluid, including convection and refraction effects. In practice, holding the density factor constant suppresses the latter and throws some doubt on values of the former. Alternate formulations via convected wave equations are gaining interest. An attempt is made to bring some coherence into the subject.
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