Boulder dislodgement and transport by solitary waves: Insights from three‐dimensional numerical simulations
Boulder dislodgement and transport by solitary waves: Insights from three‐dimensional numerical simulations
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孤波引起的巨石移动和运输：三维数值模拟的见解
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
R. Weiss
中科院分区：
文献类型：
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作者：
A. Zainali;R. Weiss
对漂砾运动和移位的分析为成因过程的物理学提供了重要的见解，即，在风暴或海啸期间巨石是否移动以及相应事件的强度。以往的研究主要基于简化模型和阈值考虑。我们采用三维数值模拟的流体动力学与刚体动力学耦合研究孤石迁移和运输孤立波。我们探讨了三个重要的无量纲参数对漂砾输运问题的影响，即弗劳德数Fr、对数尺度的纵横比α和淹没因子β。我们的研究结果表明，漂砾运动是复杂的，在运输过程中的一个无量纲参数的微小变化会导致显着不同的行为和最终的休息场所的漂砾。需要更多的研究来确定巨石在海啸和风暴危险评估中的作用。
The analysis of boulder motion and dislodgement provides important insights into the physics of the causative processes, i.e., whether or not a boulder was moved during a storm or tsunami and the magnitude of the respective event. Previous studies were mainly based on simplified models and threshold considerations. We employ three‐dimensional numerical simulation of the hydrodynamics coupled with rigid body dynamics to study boulder dislodgement and transport by solitary waves. We explore the effects of three important nondimensional parameters on the boulder transport problem, the Froude number Fr, the aspect ratio in logarithmic scale α, and the submergence factor, β. Our results indicate that boulder motion is complex, and small changes in one of the nondimensional parameters result in significantly different behavior during the transport process and the final resting place of boulders. More studies are needed to determine the role of boulders in tsunami and storm hazard assessments.
TsuSedMod 反演模型应用于 2004 年苏门答腊岛和 2006 年爪哇海啸的沉积物以及对估计古海啸流动参数的影响
影响因子：
2.8
作者：
Spiske;Bahlburg;Roskosch;Amijaya
通讯作者：
Amijaya