复杂断裂系统中的克劳克利斯波传播:通过二维时间和边界元素方法进行建模
1Energy Geosciences Division, EESA, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
The Journal of the Acoustical Society of America
|July 19, 2024
概括
这项研究引入了一种新方法,用于分析液体充满的骨折中的复杂波相互作用. 它有效地模拟了这些断层如何散射和产生波浪,改善了我们对地震现象的理解.
科学领域:
- 地质物理学 地质物理学
- 计算力学 计算力学 计算力学
- 波浪传播 波浪传播
背景情况:
- 充满液体的骨折表现出复杂的波浪相互作用.
- 克劳克利斯波是裂内的分散和减弱压力波.
- 周围媒体与身体波的相互作用是显著的.
研究的目的:
- 引入一种高效的二维时间和弹性动力学边界元素方法.
- 在骨折中建模低频,局部流体-固体相互作用.
- 在复杂的断裂系统中检查波散射和辐射.
主要方法:
- 开发了一种2D时间和弹性动力学边界元素方法.
- 采用零厚度,多弹性线性滑动接口.
- 模拟的流体-固体相互作用没有有限厚度的流体层.
主要成果:
- 成功地模拟了Krauklis波通过断裂扭曲的散射.
- 检查了Krauklis波产生的身体波的辐射.
- 在分析复杂的断裂系统中证明了效率.
结论:
- 开发的方法有效地模拟了液体充满的断裂中的复杂波浪现象.
- 这种方法增强了在地质形成中波散射和辐射的研究.
- 为了解破碎介质中的地震波行为提供了有价值的工具.
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