Numerical modelling of armour block sea breakwater with smoothed particle hydrodynamics
Numerical modelling of armour block sea breakwater with smoothed particle hydrodynamics
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DOI：
10.1016/j.compstruc.2013.10.011
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发表时间：
2014-01-01
影响因子：
4.7
通讯作者：
Gomez-Gesteira, M.
中科院分区：
文献类型：
--
作者：
Altomare, C.;Crespo, A. J. C.;Gomez-Gesteira, M.
应用光滑粒子流体动力学（SPH）方法模拟波浪作用于斜坡堤时的三维流固耦合问题。其主要目的是建立装甲结构模型，并验证其在周期波作用下的响应。复杂的几何形状由带槽的立方体块表示，因此防波堤向海层内的周围间隙需要大量的颗粒来获得足够详细的流动描述。使用新的计算机架构解决方案，如图形处理单元（GPU），流体-结构相互作用的建模与SPH颗粒之间的装甲块，是真实的结构的代表。开源GPU代码DualSPHysics能够模拟数百万个粒子，从而精确模拟装甲结构上的助跑。SPH方法已被证明是一种适合于海岸工程实际应用的方法。在目前的工作中的助跑高度的计算和经验的解决方案和实验数据进行比较。合理的协议获得的助跑由于经常波冲浪相似数从3.0到5.5的范围内。(C)2013爱思唯尔有限公司保留所有权利。
The application of smoothed particle hydrodynamics (SPH) to model the three-dimensional fluid-structure interaction for waves approaching a rubble mound breakwater is presented. The main aim is to model the armoured structure and to validate its response under the action of periodic waves. The complex geometry is represented by grooved cubic blocks such that the surrounding gaps within the breakwater seaward layer require a large number of particles to obtain a sufficiently detailed description of the flow. Using novel computer architecture solutions such as graphics processing units (GPUs), the fluid-structure interaction is modelled with SPH particles between armour blocks that are representative of the real structure. The open-source GPU code, DualSPHysics, enables the simulation of millions of particles required for the accurate simulation of the run-up on an armoured structure. SPH has been proven to be a suitable method for practical applications in coastal engineering. In the present work the run-up heights are computed and compared with empirical solutions and experimental data. Reasonable agreement is obtained for the run-up due to regular waves over a range of surf similarity numbers from 3.0 to 5.5. (C) 2013 Elsevier Ltd. All rights reserved.