Effective model of gassy sediments and acoustical approach for its verification

Gassy sediments of shallow lakes are a source of permanent concern due to their contributions to sediment destabilization and global warming. In this study, a “microscopic” bubble model is suggested that describes shapes and sizes of methane bubbles in muddy aquatic sediments predefined by sediment...

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Bibliographic Details
Main Authors: Katsman, Regina, Lunkov, Andrey, Uzhansky, Ernst, Katsnelson, Boris
Format: Conference Proceeding
Language:English
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Summary:Gassy sediments of shallow lakes are a source of permanent concern due to their contributions to sediment destabilization and global warming. In this study, a “microscopic” bubble model is suggested that describes shapes and sizes of methane bubbles in muddy aquatic sediments predefined by sediment mechanical properties. An effective media model specifying a bubble size distribution is designed based on the microscopic model. An acoustic approach for verification of this model is proposed. It is based on the estimation of the frequency dependence of sound reflection coefficient from gassy sediments, which exhibits the resonant behavior. An experimental implementation of the method is discussed.
ISSN:1939-800X
DOI:10.1121/2.0001462