倾滑断层作用引起的海床动态位移引起的海啸
Tsunami generation by dynamic displacement of sea bed due to dip-slip faulting
摘要：
在经典的海啸生成技术中，人们忽略了地震断层破裂引起的海床动态位移。本研究考虑到这些动态效应。地壳被认为是一种开尔文-福格特材料。假定震源是粘弹性介质中的位错。流体运动由经典的非线性浅水方程（NSWE）描述，水深随时间变化。粘弹性动力学方程的有限元方法和NSWE的有限体积计划解决。静态和动态海啸生成方法之间的比较。数值计算的结果表明，两种方法的差异和动力效应可以解释海啸波列的复杂形状。
英文摘要：
In classical tsunami-generation techniques, one neglects the dynamic sea bed displacement resulting from fracturing of a seismic fault. The present study takes into account these dynamic effects. Earth's crust is assumed to be a Kelvin-Voigt material. The seismic source is assumed to be a dislocation in a viscoelastic medium. The fluid motion is described by the classical nonlinear shallow water equations (NSWE) with time-dependent bathymetry. The viscoelastodynamic equations are solved by a finite-element method and the NSWE by a finite-volume scheme. A comparison between static and dynamic tsunami-generation approaches is performed. The results of the numerical computations show differences between the two approaches and the dynamic effects could explain the complicated shapes of tsunami wave trains.
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