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首页> 外文期刊>Ocean Engineering >Reflection and transmission of plane waves at an interface of water/porous sediment with underlying solid substrate
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Reflection and transmission of plane waves at an interface of water/porous sediment with underlying solid substrate

机译：平面波在水/多孔沉积物与下层固体基质的界面处的反射和透射

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摘要

Ocean floor is usually covered with porous marine sediment. The wave reflection and transmission at the interface separating semi-infinite ocean and porous sediment has been extensively investigated in the last three decades. This paper focuses on the wave propagation at the ocean-porous sediment interface with underlying solid substrate. The analytical solutions for the plane wave reflection and transmission in the coupled water-porous sediment-solid substrate system are obtained in terms of displacement potentials. Based on the derived theoretical formulation, the wave reflection and transmission coefficients at the water/porous sediment interface are examined numerically with various incident angles, excitation frequencies, and sandwiched sediment depths. In addition, the energy dissipation effects of the porous sediment and the flow condition at the porous/solid interface are investigated. The results show that the porous sediment layer has a significant effect on the reflected wave in the overlying water.
机译：海床通常覆盖着多孔的海洋沉积物。在过去的三十年中，对半无限海洋和多孔沉积物之间的界面处的波反射和透射进行了广泛的研究。本文重点研究海浪在沉积物与底层固体基质界面的传播。从位移势的角度，获得了水-波沉积-固相耦合体系中平面波反射和透射的解析解。基于推导的理论公式，以各种入射角，激发频率和夹心沉积物深度对水/多孔沉积物界面处的波反射和透射系数进行了数值检查。此外，研究了多孔沉积物的能量耗散效应和多孔/固体界面的流动条件。结果表明，多孔沉积物层对上覆水中的反射波有显着影响。

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