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An efficient method to compute the dynamic response of a fluid-filled crack
https://nied-repo.bosai.go.jp/records/4757
https://nied-repo.bosai.go.jp/records/4757394601db-c970-45c7-814e-d36824787a54
Item type | researchmap(1) | |||||||||
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公開日 | 2023-03-30 | |||||||||
タイトル | ||||||||||
言語 | en | |||||||||
タイトル | An efficient method to compute the dynamic response of a fluid-filled crack | |||||||||
言語 | ||||||||||
言語 | eng | |||||||||
著者 |
Mare Yamamoto
× Mare Yamamoto
× Hitoshi Kawakatsu
|
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抄録 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | The vibration of a fluid-filled crack is considered to be one of the most plausible source mechanisms for the long-period events and volcanic tremors occurring around volcanoes. As a tool for the quantitative interpretation of source process of such volcanic seismic signals, we propose a method to numerically simulate the dynamic response of a fluid-filled crack. In this method, we formulate the motions of the fluid inside and the elastic solid outside of the crack, using boundary integrals in the frequency domain and solve the dynamic interactions between the fluid and the elastic solid using the point collocation method. The present method is more efficient compared with the time-domain finite difference method, which has been used in simulations of a fluid-filled crack and enables us to study the dynamics of a fluid-filled crack over a wide range of physical parameters. The method also allows us direct calculation of the attenuation quality factor of the crack resonance, which is an indispensable parameter for estimating the properties of the fluid inside the crack. The method is also designed to be flexible to many applications, which may be encountered in volcano seismology, and thus, extensions of the method to more complicated problems are promising. | |||||||||
言語 | en | |||||||||
書誌情報 |
en : GEOPHYSICAL JOURNAL INTERNATIONAL 巻 174, 号 3, p. 1174-1186, 発行日 2008-09 |
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出版者 | ||||||||||
言語 | en | |||||||||
出版者 | WILEY-BLACKWELL | |||||||||
ISSN | ||||||||||
収録物識別子タイプ | ISSN | |||||||||
収録物識別子 | 0956-540X | |||||||||
DOI | ||||||||||
関連識別子 | 10.1111/j.1365-246X.2008.03871.x |