Inhomogeneous absorption and geometric acoustics
作者:
F. D. Tappert,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1998)
卷期:
Volume 103,
issue 3
页码: 1282-1287
ISSN:0001-4966
年代: 1998
DOI:10.1121/1.421268
出版商: Acoustical Society of America
数据来源: AIP
摘要:
The conventional formulation of geometric acoustics in the presence of inhomogeneous (spatially varying) absorption is examined. This formulation is found to fail under conditions of multipath propagation, because interference between ray paths is not taken into account when the absorptive losses are calculated. The example of high-frequency attenuation due to a surface bubble layer is studied, and Weston’s correction term is discussed.
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