Low-frequency propagation in extremely shallow water
In water depths on the order of a wavelength, sound propagates with considerable involvement of the bottom, whose bulk and shear moduli as well as velocities and attenuation vary with depth into the sediment. This problem has been studied with a two dimensional finite-element code to illustrate the...
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| Published in: | The Journal of the Acoustical Society of America Vol. 126; no. 4_Supplement; p. 2315 |
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| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
| Published: |
01-10-2009
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| Online Access: | Get full text |
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| Summary: | In water depths on the order of a wavelength, sound propagates with considerable involvement of the bottom, whose bulk and shear moduli as well as velocities and attenuation vary with depth into the sediment. This problem has been studied with a two dimensional finite-element code to illustrate the consequences of computational assumptions pertinent to these parameters and their gradients with depth into the sediment. Both time harmonic (steady state) and transient (animated pulse) sequences are treated in two dimensional depictions. [Work supported by the U.S. Army Space and Missile Defense Command.] |
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| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0001-4966 1520-8524 |
| DOI: | 10.1121/1.3249549 |