3D Integrated numerical model for fluid-structures-seabed interaction (FSSI): Elastic dense seabed foundation
3D Integrated numerical model for fluid-structures-seabed interaction (FSSI): Elastic dense seabed foundation
复制标题
流体-结构-海底相互作用 (FSSI) 的 3D 集成数值模型：弹性致密海底基础
DOI：
10.1016/j.oceaneng.2016.01.003
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发表时间：
2016
影响因子：
5
通讯作者：
Ye J
中科院分区：
文献类型：
--
作者：
Ye J
在无尽的常规波浪、偶尔的热带风暴或台风以及可能发生的海啸的袭击下，世界上每年因海上结构物失效而造成的经济损失和财产损失都是巨大的。海洋结构物及其海底基础的波浪动力学问题一直是研究人员和海洋工程人员关注的焦点。以往研究波浪-结构-海底相互作用的文献一般采用二维模型和解耦方法。本文以沉箱防波堤为典型海上结构，采用FSSI-CAS 3D三维综合数值模型，研究海浪与沉箱防波堤及其多孔弹性海底基础之间的简单线性相互作用。数值结果表明，FSSI-CAS 3D能够有效、充分地捕捉海洋结构的波浪动力变化现象及其致密多孔弹性海底基础的瞬间液化。该研究为海洋工程人员在设计阶段利用所建立的综合数值模型预测海洋工程结构的动力响应和稳定性提供了广阔的前景。
Economic losses and property damage due to the failure of offshore structures are huge each year in the world, under the attack of endless conventional wave, occasional tropical storms or typhoons, and possible tsunami. Wave-induced dynamics of offshore structures and their seabed foundation attract a great deal of attention from researchers and ocean engineers. Previous literature investigated the wave–structures–seabed interaction generally adopting 2D models and decoupled way. In this study, taking a caisson breakwater as the typical offshore structure, the simple linear interaction between ocean wave, a caisson breakwater and its poro-elastic seabed foundation is investigated by utilizing a three-dimensional integrated numerical model FSSI-CAS 3D. The numerical results indicate that FSSI-CAS 3D can effectively and sufficiently capture a variation of phenomena of wave-induced dynamics of offshore structures, and momentary liquefaction in its dense poro-elastic seabed foundation. This study demonstrates great promise of using the developed integrated numerical model in offshore industry to predict the dynamic response and stability of offshore structures by ocean engineers in design stage.