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Titlebook: Sound Propagation in Stratified Fluids; Calvin H. Wilcox Book 1984 Springer Science+Business Media New York 1984 Fluids.Geschichtete Ström

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书目名称Sound Propagation in Stratified Fluids
编辑Calvin H. Wilcox
视频videohttp://file.papertrans.cn/873/872033/872033.mp4
丛书名称Applied Mathematical Sciences
图书封面Titlebook: Sound Propagation in Stratified Fluids;  Calvin H. Wilcox Book 1984 Springer Science+Business Media New York 1984 Fluids.Geschichtete Ström
描述Stratified fluids whose densities, sound speeds and other parameters are functions of a single depth coordinate occur widely in nature. Indeed, the earth‘s gravitational field imposes a stratification on its atmosphere, oceans and lakes. It is well known that their stratification has a profound effect on the propagation of sound in these fluids. The most striking effect is probably the occurrence of acoustic ducts, due to minima of the sound speed, that can trap sound waves and cause them to propagate hori­ zontally. The reflection, transmission and distortion of sonar signals by acoustic ducts is important in interpreting sonar echoes. Signal scattering by layers of microscopic marine organisms is important to both sonar engi­ neers and marine biologists. Again, reflection of signals from bottom sediment layers overlying a penetrable bottom are of interest both as sources of unwanted echoes and in the acoustic probing of such layers. Many other examples could be given. The purpose of this monograph is to develop from first principles a theory of sound propagation in stratified fluids whose densities and sound speeds are essentially arbitrary functions of the depth. In physical ter
出版日期Book 1984
关键词Fluids; Geschichtete Strömung; Operator; Partieller Differentialoperator; Schallausbreitung; Signal; Spekt
版次1
doihttps://doi.org/10.1007/978-1-4612-1124-2
isbn_softcover978-0-387-90986-8
isbn_ebook978-1-4612-1124-2Series ISSN 0066-5452 Series E-ISSN 2196-968X
issn_series 0066-5452
copyrightSpringer Science+Business Media New York 1984
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Spectral Analysis of Sound Propagation in Stratified Fluids,agator A. The basic physical concepts and results are summarized in §1. A more detailed formulation and complete proofs of all the results are developed in the remaining sections. This rather long chapter provides the analytical foundation for the solutions of the propagation problems that are developed in Chapters 4 and 5.
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Transient Sound Field Structure in Stratified Fluids,e analysis imply that each such field is a sum of a free component, which behaves for large times like a diverging spherical wave, and a guided component which is approximately localized in regions |y - y.| < h. where c(y) has minima and propagates outward in horizontal planes like a diverging cylindrical wave.
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Applied Mathematical Scienceshttp://image.papertrans.cn/s/image/872033.jpg
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https://doi.org/10.1007/978-1-4612-1124-2Fluids; Geschichtete Strömung; Operator; Partieller Differentialoperator; Schallausbreitung; Signal; Spekt
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0066-5452 principles a theory of sound propagation in stratified fluids whose densities and sound speeds are essentially arbitrary functions of the depth. In physical ter978-0-387-90986-8978-1-4612-1124-2Series ISSN 0066-5452 Series E-ISSN 2196-968X
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