Acoustics of the seabed as a poroelastic medium / Nicholas P. Chotiros.
Chotiros, Nicholas P., author.
2017
GC87
Available Online

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Title Acoustics of the seabed as a poroelastic medium / Nicholas P. Chotiros.
Author Chotiros, Nicholas P., author.
ISBN 9783319142777 (electronic book)
3319142771 (electronic book)
9783319142760
DOI https://doi.org/10.1007/978-3-319-14277-7
Published Cham, Switzerland : Springer, [2017].
Copyright ©2017
Language English
Description 1 online resource : illustrations.
Item Number 10.1007/978-3-319-14277-7 doi
Call Number GC87
Dewey Decimal Classification 551.4608
Summary This book presents a concise description of the acoustics of ocean sediment acoustics, including the latest developments that address the discrepancies between theoretical models and experimental measurements. This work should be of interest to ocean acoustic engineers and physicists, as well as graduate students and course instructors. The seabed is neither a liquid nor a solid, but a fluid saturated porous material that obeys the wave equations of a poroelastic medium, which are significantly more complicated than the equations of either a liquid or a solid. This volume presents a model of seabed acoustics with input parameters that allow the model to cover a wide range of sediment types. The author includes example reflection and transmission curves which may be used as typical for a range of sediment types. The contents of this book will allow the reader to understand the physical processes involved in the reflection, propagation, and attenuation of sound and shear waves in ocean sediments and to model the acoustic properties for a wide range of applications.
Bibliography, etc. Note Includes bibliographical references and index.
Access Note Access limited to authorized users.
Digital File Characteristics text file PDF
Source of Description Vendor-supplied metadata.
Series SpringerBriefs in oceanography.
Available in Other Form Print version: 9783319142760
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The Acoustical Society of America; Acknowledgements; Contents; Symbols and Abbreviations; 1 Introduction; 2 Sediment Classification; 3 Basic Theory; 3.1 The Need for a Poroelastic Model; 3.2 Poroelastic Model; 3.3 From Poroelastic to Fluid Models; 3.4 From Poroelastic to Solid Models; 3.5 Poroacoustic Models; 3.6 Effective Density Fluid Model; 3.7 Rigid Grain Approximation; 3.8 Basic Theory Summary; 4 Water-Saturated Sandy Sediments; 4.1 Compressional Wave; 4.2 Compressional Wave: Biological Connection; 4.3 Compressional Wave: Gas Bubbles; 4.4 Compressional Wave: Multiple Scattering

4.5 Compressional Wave: Summary4.6 Shear Wave; 4.7 Shear Wave: Grain Contact Physics; 4.8 Shear Wave: Microfluidics; 4.9 Comparison with the Grain-Shearing Models; 4.10 Measurement-Model Comparisons; 4.11 Summary: Extended Biot Model; 5 Correction for a Wide Range of Sediments; 5.1 Simplified Parameter Set; 5.2 Softer Sediments; 5.3 Softer Sediments: Pore Fluid Dynamics; 5.4 Softer Sediments: Frame Elasticity; 5.5 Summary: Corrected REB Model; 6 A Demonstration; 6.1 Reduced Parameter Set; 6.2 Wave Speeds, Absorptions, Reflection; 6.3 Summary

Appendix A: Sediment Sound Speed and Attenuation Data SourcesReferences; Index

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