Acoustic Characteristics of Gravel Sediment: Application of the BICSQS model

Title
Acoustic Characteristics of Gravel Sediment: Application of the BICSQS model
Author(s)
정섬규; 이동완; 신동혁; 이용국; 최복경; 김봉채; 김병남
KIOST Author(s)
Shin, Dong Hyeok(신동혁)Choi, Bok Kyoung(최복경)Kim, Byoung Nam(김병남)
Publication Year
2012-12-05
Abstract
Acoustic properties such as phase velocity or attenuation of ocean sediment have been studiedby many researchers because it affects acoustic propagation in the under of ocean. Theoretically,Biot’s theory is well known for explain the phase velocity and attenuation of porous medium likeocean sediment. After that, BISQ model which considered grain to grain contact physics isdeveloped by Dvorkin and Nur. And BICSQS model which adds grain contact squirt flow andviscous drag to BISQ model is worked out by Chotiros and Isakson. By these models,behavior of the phase velocity and attenuation of ocean sediment can be explained. Until a recentdate, sand sediment is mainly investigated, it is necessary to study about gravel sediment.phase velocity and attenuation of porous medium likeocean sediment. After that, BISQ model which considered grain to grain contact physics isdeveloped by Dvorkin and Nur. And BICSQS model which adds grain contact squirt flow andviscous drag to BISQ model is worked out by Chotiros and Isakson. By these models,behavior of the phase velocity and attenuation of ocean sediment can be explained. Until a recentdate, sand sediment is mainly investigated, it is necessary to study about gravel sediment.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/27243
Bibliographic Citation
The 33rd Proceedings of Symposium on Ultrasonic Electronics, pp.405 - 406, 2012
Publisher
The
Type
Conference
Language
English
Publisher
The
Related Researcher
Research Interests

Underwater Acoustics,Bubble Acoustics,Marine Defense & Safety,수중음향,기포음향,해양방위·안전

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