Estimationof Gas Void Fraction in Gas-Bubble-Contained Sand with Difference Frequency Acoustic Wave

Title
Estimationof Gas Void Fraction in Gas-Bubble-Contained Sand with Difference Frequency Acoustic Wave
Author(s)
김병남; 윤석왕; 최복경; 김봉채; 박요섭; 정섬규; 이용국
KIOST Author(s)
Kim, Byoung Nam(김병남)Choi, Bok Kyoung(최복경)Park, Yosup(박요섭)
Publication Year
2011-11-08
Abstract
When two primary acoustic waves of different frequencies are incident on gassy sediments, nonlinear acoustic waves can be strongly generated at the difference frequency of the primary frequencies. The nonlinearity parameter of gassy sediment is related to the gas void fraction provided the primary frequencies are lower than bubble resonance frequencies1). In this study, the nonlinearity parameter of gas-bubble-contained sand was evaluated by using a theory of the parametric acoustic array for difference frequency acoustic wave. Gas void fraction of the gas-bubble-contained sand was estimated from the evaluated nonlinearity parameter.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/28065
Bibliographic Citation
Symposium on Ultrasonic Electronics 2011, pp.121 - 122, 2011
Publisher
Symposium on Ultrasonic Electronics
Type
Conference
Language
English
Publisher
Symposium on Ultrasonic Electronics
Related Researcher
Research Interests

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

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